Best of 2010
When I first started thinking about what games I'd put on my list, I wasn't sure that I'd played 10 games that were released in 2010. It feels like I've spent an enormous amount of time playing games this year, but I think I've been in a bit of a time warp - picking up 2008/2009 games at discounted prices and enjoying them as much as everybody else did when they were new. Recently, I've been playing a ton of Dragon Age: Origins and I'm still playing Borderlands. I played Assassin's Creed II over the summer and I also had a blast with Plants vs Zombies (XBLA). I would've loved to include it on this list, but I think it was technically released in 2009 (even though the XBLA version came out in 2010).
That said, I spend a relatively large amount of time playing the games that I DO play, so I feel completely confident with my list despite the fact that I haven't played/included several of the games that have received a lot of praise: Pac-Man CE DX, Mass Effect 2, Halo: Reach, Super Mario Galaxy 2, Super Meat Boy, Starcraft 2, Bayonetta, etc...