I don't think FO4 should be even touching the word RPG. The reason i'm saying that is because almost every single RPG aspect is missing from it, like the ability to "Role-play". When you dumb down your dialogue and when almost every decision relies on you having a high charisma it doesn't leave much room to have any actual choices, it's very linear compared to other Fallout games. While the combat & gunplay is a lot better than previous titles it doesn't make it a better game.
Fallout isn't suppost to be an FPS with cool locations, but it's an RPG that relies on lore. Something both Fallout 3 & 4 had little of and another reason why New Vegas is superior and will defend it till death. What bothers me is that Bethesda didn't learned a single thing from Obsidian, they took FO3 and dumbed it down even more.
New Vegas:
- 200 weapons
- armor damage threshold
- faction disguise system which permitted you to do various shenanigans in your favour
- more elaborate karma system that changes depending on where you are in Wasteland
- way more quests
- your choices actually mattered
- no hand holding
- superior writing and storyline and world that felt more dynamic
- 4 base endings with tons of other sub-endings focusing on the side quests you've done for minor factions, settlements, characters and companions
- low int. conversation lines
Fallout 4
- only 60 weapons
- no armor damage threshold
- no faction disguise
- no karma
- no skills
- abysmall linearity
- dumbed down dialogue wheel
- no low int. conversation lines
- 4 paths that all lead to exact same narration with same epilogue conclusion
- no Ron Perlman
In my opinion it's a decent game. But is it a good RPG and a good Fallout game? Not in my eyes.
Sorry for going offtopic.
Where to start? With weapons i guess.
Weapons - Those 200 you mention from New Vegas, with or without DLC? How many have modifications etc? Fallout 4 has 50 base weapons and 700 modifications for those weapons which is 35000 possibilities. If its with DLC not a fair comparison.
Armor damage threshold - Well it has a new system with resistance for energy, ballistic and radiation instead, why is this a bad thing? 3 options to focus on is better than one right? Makes it more interesting to balance your characters protection.
Faction disguise - Not a good option to carry forward, as it was very broken. The whole reputation system didn't work properly. Kill two legionnaire soldiers in the desert, get vilified, put on a costume, we're fine, its ok! We are neutral - Makes zero sense to me.
Karma - Very subjective, but i think the game is better for it as i want my actions to make the world change, and not a meter change. With Evil karma you were never seen as evil by others, it was just a stat to feed the ego. Fallout 4 unfortunately fails on letting actions have impact on the world though.
Skills - Well there are skills, some of them are just perks now. Like Science, and lockpicking, also some specials have gotten the skills modifier. Like Intelligence makes it easier for you to hack with removing alternatives on the screen etc.
Dialogue wheel - the dialogue wheel isn't dumb, the options are. So agreed on that atleast.
Low Int conversation - Fallout 3 didn't have this either, and it doesn't seem Bethesda want to make it an option in game. Your character talks differently when drunk though, that is something.
The ending - 4 paths that lead to mostly the same conclusion, but with wildly different choices, flavour and dialogue surrounding it. Also post ending quests.
Ron Perlman - Well he is an easter egg atleast, so he is still there. They focused more on a character story, whether they succeded or not is subjective.
Think that is it, and well its mostly my opinion versus your anyway. The depth in most aspects is not lacking though, they are just not aspects you care for.