Fallout 4 is pretty damn good, I still need to finish it.
I used to finish every game I had, now I have several mid way or a 4th of the way through haha.
Fallout 3 is one of the best RPGs I have ever played personally. Nothing was ever presented like it again, even it's "sequels" felt off. A sort of Slightly futuristic ODE to less modern text RPGs.
I can honestly say I liked 3 more than any of them.
Though they are all pretty good.
Part Nostalgic Biased I guess, Quite a few RPGs on last gen felt older and I really enjoyed playing the ones not so focused on graphics.
At times it can feel like games try a bit to hard to push the envelope on graphic tech, and forget to dive into the depth of gameplay development.