I voted MK.
I'll get my first chance to play that game on Monday, and even ordered a 360 controller because of the quick look and Brad's explanation of the gameplay with one. Here's hoping it won't be a huge letdown.
Deus Ex right now, but I think Dead Island will beat it once I recieve my copy of that on Monday. Super-stoked for that game.
Ghost Trick. The 2nd would be Catherine. Both are not on your list, which I guess is a testament to how non-common my tastes are.
I very seriously thought about choosing Catherine, and I'm extremely conflicted about that game. The high points are absolute brilliance for me, but I found the low points to be only slightly better than most of Duke Nukem Forever. Also, Ghost Trick is very compelling, but a little repetitive, and Chapter Nine's puzzle (the dark prison sequence) is BEYOND PAINFULLY FRUSTRATING. I actually stopped playing at that point, so my perspective on the game as a whole might be void.