Seriously, I would like to hear an explanation for that too.

Look at the competition. Chances are U3 will be an improvement on Uncharted 2 that will probably try not to get out of its comfort & use the philosophy 'if it ain't broke, don't fix it'. If it does so, it will definitely be one of the best games next year but it will also definitely not be the game of the year. That title will go to Skyrim, or Skyward Sword, or Sky-Bioshock 3, or some other sky related (just joking around, doesn't have 2 be sky related) game that does something new with its old formula or starts a new, excellent ip.

Personally, I hope Skyward Sword wins GOTY and actually deserves it because that would mean it met all my hopes.

Call me crazy but I think nothing will be able to defeat LBP 2 next year, maybe elder scrolls if it releases next year, and without bugs.