I'm an RPG-er, so my wishlist for ME3 is biased.

I haven't sorted through all the comments on this thread, so I don't
know if I'm in the minority, but feel as though I might be.
As a femShep gamer my pronouns regarding Shepard are fem. And, um. Long post is long.
1) Story and decisionsThere's no question about the story. It will be awesome and epic and made of win. No lack of faith here.
I understand time and space issues, but I do want the decisions to be more tangible than an email like how the side quests for Helena Blake, the Reporter, Refund Guy, and even the elcor Hamlet were done. In person or spoken/overheard. There's nothing more impersonal than an email. Even the news reports in ME1 had more impact than email in ME2. (Side note: loved how the "news" was slightly different than what actually happened) If ME3 is the last game in the trilogy, I want my decisions wrapped up with no dangling threads. I don't want to wonder, "What happened to watchacall?"
Tangible Decisions:[*]One of my femShep's has an all-loyal crew who survived. Another has a mixed team with most surviving. I want to know that their loyalty means something other than "defeated Death cuz they heart me." (Although hearing a news feed about "Pirate Jack" would be too funny for words--no email).
[*]I loved how the decision about Feros carried over (please don't leave me hanging!). I want to know about my decisions Noveria, too.
[*]I want to find out about Talitha in person--she is the sole reason I play colonist for nearly every Shep I've created. The sidequest from ME1 was very gripping. I was disappointed that all I received was an email update on her condition.
[*]I'm not a Thane, Garrus or Tali fangirl, but I would like to know if my decisions regarding them pan out.
[*]I want to know if Jack's loyalty mission meant anything other than her getting closure or whatever she was supposed to get from that mission.
[*]One of my femshep's has stayed true to the LI from the first game (Kaidan); the other has picked up another LI from the second (ME1: Liara, ME2: Jacob) - I want that decision to play a role someway, somehow in ME3. I want that decision to matter and not in email format or a brief cameo, please.
2) ImmersionI read books and play video games to relax and have a good time and not think about the "here and now". I want to be fully immersed into the game just I was in ME1. I laugh everytime Shepard and crew step on an elevator. It was awesome that they were long and there was Elevator Music because the Presidium was
huge. It gave more credibility to the universe. If she's in a hurry, she grabs a cab which takes less time.
That said, the load screens must go.
Please. Take them and shove them out the airlock. They break my immersion, and yes, it's a game, but there's no point in playing an RPG if there's no immersion. It defeats the purpose of role-playing. No other game has given me the immersion-factor that ME1 did. Bring back the news or ads or conversations between the characters in elevators or even during a car/shuttle ride or Joker and EDI bantering on the bridge when entering an airlock or when the ship is travelling.
3) Characters/ Interaction/banter/conversationsThis goes along with the lack of immersion in ME2. I know the story is Shepard's, but if the characters are so important to the story, why do they not interact with one another? I think most people, by now, have been spoiled by the interactions of DA:O (myself included), but ME1 had the conversations in the elevators and the interactions at different points during gameplay, and even Wrex and the krogan statue conversation was awesome.
In ME2, there were more interactions with random characters than squadmates (or so it seemed). It bothered me that I couldn't click a squadmate to interact with, even it was to hear them say, "I'm here" or "What do you need?" or "Right behind you, Shepard," or "Yep. Standing around doing nothing is
awesome." There needed to be more random things like Joker's little bits of random or Mordin's comments if you tried to talk personally with him on the Normandy too many times.
And seeing as this is my wishlist and preferences: I preferred the
characters saying, "Huh" or "Hmm" in ME1 over the "click here to talk to
(character)" that was featured in ME2.
I want loyalty missions for the LIs from ME1 even they weren't romanced. I want to know more about Kaidan's past or what he's been up to for the past few years, helping Liara with her troubles on Illium, and Ash's family or what she's been up to for the past few years. ME2 made me realize that there wasn't nearly enough interaction with these characters. They need to be in the final installment with the same amount of attention shown to their own missions as the characters of ME2.
4) Game+ Feature/Level Cap/ReplayI just reimported my first femShep at level 49 into ME1 to (try to) level her up to 60 to import into ME2, and I realized how irritating the Game+ feature is when you first replay the Eden Prime mission. I couldn't get any new loot without omni-gooing stuff. In ME2, I feel the distinct lack of even wanting to play through with the same character because the Game+ feature isn't really Game+. It's more of: "Here, replay this, and you get one cookie, but you've got to earn the rest later." I felt like I hadn't accomplished a thing. There was no balanced reward for replaying with the same character. I had to reimport the same one to be able to experience the game play as a renegade. I have no idea if that will break the game when ME3 gets here (I've done it four times with the same character import), and I would like to import my very first shep for her experience in ME3.
I do like the concept of Game+ but it wasn't balanced for either game. At the end of the day, I prefer the "OMG TOO MUCH!!" to the feeling of "Why am I doing this again? What did I get for my efforts? I have to probe planets again??"
The level cap at 30 was annoying too. It was too easy to do. There's no replay fun after a certain point in ME2. Why play after the end game if there's no reason to?
5) Rich/Shopping/CreditsI liked being rich in ME1. I liked being able to find crap around the level and then sell my crap and max out my credits only to buy more crap. Sure the Game+ feature needed tweaking, but give me more ways to get credits. If there are upgrades or mined ore or whatnot, Let Me Sell It.
It would have been fun to have Barla Von invest it in the asari market for Shepard. Also, it would have been fun to have a minigame/subplot/sidequest where certain stocks dropped pertaining to what Cerberus/ExoGeni/pirate bases Shepard took out.
6) The Inventory System/Omni-gel/Where's my loot?I want omni-gel back if I can't crack open a safe on the minigame.
It should be an achievement to earn after cracking so many safes or
whatnot. At least then it isn't giving out freebies. I can't stand not being able to get the loot.
I'm a control freak. I like to micro-manage. It's why I prefer RPGs. Not all people like to do this, and I can understand. I like being able to upgrade
everyone's armor and weapons. I don't want to have to buy a DLC just to change my squadmates clothes (I'm not even sure if the clothing effects the stats- if not what the heck is the point?). This is not the Neopets NeoMall or the Sims.
Which brings me to: Armor. Shepard and Tali are the only two whose armors were completely sealed and didn't contaminate the quarian Flotilla. WTF? Can we have hardsuits and helmets (with toggle) for the squadmates in ME3?
I had only one problem with the Inventory system in ME1: Omni-gooing the equipment mods and ammo. The first page of inventory would delete/omni-goo properly. When you got to the mod screen, it was an unpleasant experience. Scrolling to the very bottom to delete the very last mod during Game+ was tedious because it would jump back to the top and you would have to scroll down
again.Instead the system for ME2 was so simplified that it took all the fun out of exploration and looting. I don't like having to wait until Shepard and her party get to a certain
spot to change their armor or weapons. It's like having a save point and makes the game seem linear. Yay, a base, but I
didn't like not being able to equip a new goodie myself right then or getting a new
goodie and the game automatically give to Shepard. I equipped her stuff the way I wanted it, not to be undermined by a system that doesn't agree with my playing style.
Helmet-toggle: Give it back! Shepard keeps splashing alcohol on her helmet!
7) Running/Mako/HammerheadOkay, this may seem stupid to ask for since everyone appears to be about making the game more realistic and challenging, but I hate the fact that I can't push a button and Shepard will run everywhere without slowing. It was one of the cool things about exploring the Presidium in ME1. I could just hit a button and she and her buddies would go faster. Now she won't even get from the back of CIC to the bridge without breathing heavily and she's not in armor.
I do like the fact that the Hammerhead has a go-faster button. It's what the Mako needed in ME1 for those who found the exploration long and boring. I hate the fact that getting out of the Hammerhead requires a load screen. WTF? I want out just like on the Uncharted Worlds of ME1. I just pushed a button and out they would come. And say "Yes, ma'am" or "Right behind you, Shepard."
8) Romance/SexI have yet to play all the romances in ME2 (and I won't get to since I'm playing FemShep only), but the one I have completed and not broken off (Jacob) was very cool and progressed very well. It was irritating that I couldn't learn more about the potential candidates without choosing the romantic option, though. Garrus and Tali were more interesting (hated them both in the first game), and getting to know them better without the romantic options would have been better. Especially since I play FemShep and there's no option for Tali romance or Jack when she swung both ways in ME1. Liara is still female even if she does replicate by parthenogenesis.
As stated before, I want my decisions for them to carry over to the next game. Interpersonal relationships in ME2 were more advanced than in ME1, and they should impact the storyline and not be simply an email or a blip on the computer terminal.
I want a reaction from previous LIs as to the new scarring on Shepard's face.
9) Ammo/Cover/Medi-gel/CombatAs I'm replaying ME1, I realize that I hate the ammo system introduced in ME2. I'm playing in the ME 'verse to learn what happens next in the storyline. The combat is secondary and should remain secondary. I understand that it's an action RPG. There was just enough action in the first game to make it action. The system is streamlined in ME2, sure, but I can't stand having to go pick up heatsinks. The old system had the heatsinks built in and I could upgrade that. I prefer to upgrade my party's guns, mods and ammo than running around looking for shiny objects in the middle of getting my head blown off or getting stuck while varren nibble my toes (and, as an RPG-er, I like to
loot).
Which brings me to: I don't like not having medi-gel to heal Shepard. I hate having to prop her up against a boulder to recharge her health. Shields I can understand needing to recharge. Health? No. It makes no sense. I want to get to the end of the level and find out what happens, not sit and wait for Shepard to get healthy again.
In ME1, the combat was good and needed a bit of tweaking in places, but in ME2, the combat was cranked up too much. It got annoying in places and got in the way of an excellent storyline.
10) More Joker/Previous LI and Wrex as squadmatesThere are already more than enough squadmates to shake a stick at. I'm all for more interaction between Shep and Joker. His comments on each of the squadmates and interactions with EDI were awesome--as well as the mission with the Collectors. (trying to phrase that without spoilers) I'd like Ashley/Kaidan and Wrex on my team again. I'd like to hear what they have to say about Team Shepard now.
11) Exploration (AKA Why the probing? Or where the heck is my tank?)Okay. I admit. Probing Uranus was fun. It caters to my 12-year-old sense of humor (and I'm a chick), but I would like to explore the planets please. Probing the planets was bloody boring. As much as I enjoyed the N7 missions and their diversity, there were not enough. The galaxy seemed too small even with the exploration minigame (which determined Joker was the galaxy's worst pilot). I didn't like that I couldn't get down to the planet and look at the settlements or fight pirates or slavers other than at the N7 missions.
And even then she could only
walk. I don't care how many disks are used. (My pocketbook might, but I certainly don't.) I want a vehicle with a go-faster button that shoots straight and Shepard and crew can get out of without a load screen giving me gameplay tips that take me away from the game. I can get gameplay tips from the boards or a gaming site. Exploring in the Mako made the worlds seem that much bigger.
I want to loot more than ore and Eezo. DLC guns and armor for ME2 are all fine and great, but I want Shepard to open a box and go "Oh, shiny!" and stuff it in her interdimentional carry-all pouch.