PS3 or any PC game that isn't too demanding of a video card. I'm into a lot of things, although my preference is to steer away from scrollers or anything that requires twitch-style reflexes.
I was a WoW addict from 2006 - 2009. So I'm thinking that Skyrim might be worth exploring. But I'm also intrigued by The Secret World. Has anyone given that a shot? http://store.steampowered.com/app/215280/
If you like RPG-ish games I would recommend the Mass Effect Trilogy if you haven't played it. Both Fallout 3 and Fallout New Vegas are very immersive, and Mass Effect in particular has a brilliant story arc over 3 games. Neither of them require a bunch of twitch reflexes either. Both of those series are better on PC than PS3.
Quantum Conundrum was super fun, it's on Steam.
Sly Cooper Thieves in Time on PS3 was much better than I expected, it's not very challenging, but it has a lot of heart.
The Ratchet and Clank games for PS3 are really fun, and quite hilarious.
Batman Arkham Asylum is probably the best superhero game ever created, at least that I've played.