My results:
Now let us see here...
Top 2012:
Borderlands 2: Nope. Didn't like that one.
FTL: YES <3
Torchlight 2: ..eh. It wasn't bad, but it definitely wasn't amongst my favorites.
FarCry 3: I'm not too big on sandboxes. This one could be different, but I usually get bored by them.
XCOM - Enemy Unknown: Yep, it's up there on my top of 2012 list.
Top games:
Team Fortress 2: ..meh. It's kinda fun, but not THAT fun.
Skyrim: It was fun until my NPCs started doing all the work for me, after that it was just another sandbox that I got bored of.
Portal 2: Yeah, it was fairly fun, especially the co-op. Not a top game, however.
Civ V: I like strategy and tactics. I don't like the grand strategy genre, however. Haven't tried Civ V, but I'm fairly certain it won't change my stance on that.
Borderlands 2: Like I said. Didn't really like.
Recommended: Haven't tried most of them, but
Serious Sam 3 never kicked off and I got bored by it. Ugh. The rest of them may be good.
..I'm not too impressed by this thing. That being said, my Steam library doesn't really reflect my taste in games rgR, as I have a lot of stuff on consoles and non-steam-related things.