I waiting on posting because I decided to think it through a bit and while there are some games, currently I'd say it's been quite some time since I touched them.
The first game I always come back to is Final Fantasy VII, what do I have to say about it? It's my favorite.
From this gen the one game I kept coming back the most was Bayonetta. I beat it about 5 or 6 times, simply love it.
Others are: FFXIII (don't hit me), Mass Effect 2, Persona 4, maybe some others.
In the end there are quite a bunch of games I'd like to replay, but due to an increasing backlog most don't get the treatment.