All this world building talk is skewed by game play opinions seeping into the other areas of your brains. Although a mediocre game, Fallout 3 depicted the post-apocalyptic remains of a patriotic, retro-futuristic society that was deep within a cold war mirroring our own society circa 1960, and it did that shit VERY well. This atmosphere alone made me glad I played through it. I would never replay it because the game play itself just isn't strong enough to warrant it. New Vegas, on the other hand, had a pretty good world, but really didn't achieve the same effect. It ultimately just felt like a western with some future tech and warring nations, not that there's anything wrong with that. As opposed to F3, NV would be worth playing through again because of its superior gameplay.
I think I'll pass, between Oblivion, Fallout 3, and New Vegas, I'm completely burnt out on the genre..
To be fair, Morrowind and Daggerfall aren't in the same genre as the Fallouts, and some would argue that they're not even in the same genre as Oblivion considering Oblivion's shit is all retarded.
And if you liked Oblivion I would assume you'd like Morrowind way more, and if not then you're the reason we can't have nice things
And as for Fallout 4, well, without Obsidian being involved it will probably just be Fallout 3 all over again with better grafix or somesuchshit.
Maybe Wasteland 2's huge pending success teaches these fuckos a lesson.