Figured I'd throw together a list.

1. Dark Souls

2. Skyrim

3. Portal 2

4. The Witcher 2

5. Magicka

6. Battlefield 3

7. Infamous 2

8. Sonic Generation

9. Little Big Planet 2

10. Orcs Must Die

Note that I only own a PC and PS3 so any 360 or Wii exlusive did not have a chance to make it in. I also currently own Deus Ex: Human Revolution, Saints Row: The Third, Batman Arkham City, and Crysis 2 but have not played enough of any of them to consider them for my Top 10. Of course after I play them I'd assume my list would be changed but I am just letting you know hwy those games are absent from this list.