Portal 2, with Dead Space 2 running in a close second. I pretty much loved every moment of those games, and both of them managed to snag immediate places on my top five favourite games list (first and fourth, respectively). They're also two of the only games I've ever been completely comfortable paying the initial release price for.
On a side note, it's looking more and more like Saints Row The Third will (coincidentally) become my personal third best game of 2011. It just has the general look of something that will turn out to be completely amazing, you know?
On a side note, it's looking more and more like Saints Row The Third will (coincidentally) become my personal third best game of 2011. It just has the general look of something that will turn out to be completely amazing, you know?