I actually haven't played anything yet this year that I would give a GOTY to. Borderlands 2 is fun, I suppose, but I don't really think it's a GOTY candidate. Likewise, Dishonored brings some great things to the table, but it's still not my GOTY. Having just finished it recently, I can say that it lacks... something, which would have put it on the top. It'll probably make my top 5 of the year, though. XCOM is another good game, but I think it's a little buggy to take home GOTY. Again, a top fiver for sure, but it doesn't take the top spot.
I'm waiting on AC3, Persona 4, the new Need for Speed, (fingers crossed that it's more like Hot Pursuit than The Run. Don't tell me, I want to find out for myself), Hitman: Absolution and Far Cry 3 before I even think about GOTY. And yes, since you're wondering, there's a good chance I'll get most, if not all of those by Christmas. No one in my family can think of anything other than video games to get me as a gift. I'm not complaining, but it does make me wonder about myself...
But if you're going to FORCE me to pick a GOTY based on the games I've played so far this year, then I guess I'd say Dragon's Dogma? I mean, it wasn't perfect, but it was a good enough RPG in a year that has been lacking good RPGs. I can't really think of anything else that has endeared itself to me like Dragon's Dogma did by the time I finished it.