UPDATED!
Minor adjustments might still happen but this seems to be nearly set in stone.
The top 5 GOTY of 2012:
2012:1. The Walking Dead2. Journey3. Dishonored4. Far Cry 3
5. Mass Effect 3
The Walking Dead secures the first spot followed by Journey followed by Dishonored which has a very close Far Cry 3 behind it and last is Mass Effect 3.
All of games are multiplatforms aside from Journey which gives the PS3 a total point of 20 in terms of exclusives in positions yearly.
Best graphics of 2012:
2012:
Journey
Journey becomes the only game to actually get the most graphical praise of its year, overcoming the heavy Halo 4 due to its artistic nature.
Never before has a game actually gotten that much attention for its graphics due to its art and not primarily its technical achievement.
This year also saw downloadable titles overcoming retail games in terms of overall GOTY awards. Trends are indeed changing.
You can find the source and all the awards given by going to the website that is listed in the OP.
See you next year!