@ Terminus Echoes
so where is the evidence? You just point out thinks you didn't like and call it evidence to back up your theory.
Release Date:
you do understand the concept of a tentative release date, right? They could have gone the Blizzard way and just that: "It will come out when it's finished. Instead they tried to give a date. Might have been a mistake, but unless you are aware of how that date was set, you have no evidence.
The Beginning:
Remember Me1's Opening? A Cutscene of Shepard being chosen, a cutscene of Shepard walking up to Joker, a bit of Small talk with Chakwas & Co. , and, oh look, Eden Prime is under attack.
ME3: A Cutscene of the Fleet with Anderson and Hackett talking, a cutscene of Shepard watching a Kid, Small talk with Anderson, Earth is under Attack.
And there we have it, prove that ME1 and 3 are exactly the same

(that was sarcasm)
The Citadel:
Right, now please point out what you did on the Citadel in ME1. That's right, you spend hours just running along. Guess what the Fans did. That's right, they complained. So in ME2, it was changed. Fans still didn't like the useless Stairs. So in ME3, we have the important areas, where there is stuff for us to do, and a fast moving elevator.
Proof that Bioware gave us exactly what we were asking for. (not sarcasm)
Lack of a Squad:
Again, ask yourself what we Fans wanted. We wanted our Squadmates to interact with one another. To move around the Ship. The Fans also wanted the ME1 Squad back. And guess what. That's exactly what happened. We have the Survivors from ME1 (except Wrex

) on board the Normandy. Even Garrus and Tali from ME2 and EDI who moved up from Shackled AI to full Squadmate.
And they are moving around the Ship, talking to each other. Could Bioware have done that with 12 or more Squadmates? Maybe, but that's not evidence of them being rushed.
Only Two Main Planets:
So compare that to the previous games. ME1: Eden Prime, Therum, Feros, Noveria, Virmire and Ilos. Okay, that's six, in addition to that we have planetary exploration (which most people didn't like) and the odd base/space station. Not that much different.
ME2: Okay, lot's of Planets, but not much to do except shooting. If we follow the Main Story: Freedoms Progress, Horizon, Collector Vessel, Derelict Reaper, Collector Base. That's five.
Seems to me like ME3 is very similiar to the previous games.
From Ashes:
So, would you say DA:O was a rush job as well? They initially cut Shale from the Game, they put her back in, when the release was delayed. But according to your theory, at least going by the first release date, it would have been rushed.
Lack of Side Quests:
Question: How do you know, that the MP-Maps were used in SP and not the other way around?
In addition: Fan demands!
Fans wanted a sense of urgency. So doing a lot of Sidquests while the Galaxy is at stake. How dare they?
Same for the Journal. Fans didn't want to be led around. Always saying that they wanted to track their quests themselves. Well, there we have it.
I don't like the Journal, but i mostly ignore it. Checking the Map to see what NPCs i can interact with is more than enough.
Lack of Acknowledgement for Past Side Quests:
Like who/what? How is anyone supposed to counter that without knowing what you are talking about?
I got acknowledgements from pretty much everything i did in ME2 (mostly companion related). In addition, emails from Shiala and a news Report about Rana. And that's just what i can think of right now.
Choices Don't Matter:
Well, this would be the first point where i have to agree with you. Though i can't decided wether it was rushed or just deemed "too complicated" or "not important" by the devs. Hard to say.
Anyway, i agree with you on this one.
Space Hamster:
Sten: NO!
Where'd all my guns and armor go?:
Because rediscovering armor and weapons is an RPG-Element that they didn't want to remove?
Lack of Armor:
So, wait, I'm confused. You do realise, that the game-engine was changed, right? So it's pretty fair to assume, that all the armor had to be adjusted. Especially given the animations (rolling around, etc.)
In ME2 they received a lot of complaints for not including the armors from ME1, ...
Doomed if they do, doomed if they don't i say.
Lack of Love Interests:
While i would agree, that MaleShep has more LI Options than FemShep, especially when it comes to Hetero-Human-LI, your comparison only accounts for the "Gender"-Shep unique LIs. Liara, Tali, Jack, Miranda, Kaidan were apparently forgotten (oh, wait, you mentioned Kaidan).
You mentioned Ashley as MShep only. What if she died on Virmire?
And, once again: What were the Fans asking for? SameSex Romance! We got it.
Continuing our ME1 or 2 romance! With the exception of Jacob and Thane, we got it.
Oh, and if you don't like Allers. That's yor Problem. It is NOT evidence of ME3 being rushed.
The Ending:
uh, i'm unsure what to think of the ending. Right now i'm stuck between agreeing with you, and believing that Bioware was going for somethink really deep that just ended up getting buried somewhere between Circular Logic and RGB.
So all in all, i agree with two of your Points. But i couldn't see any evidence. A bit sad