Okay so I'll go more in detail what I like about this list and what I don't like.
+ GTA III is on the list and not Vice City, San Andreas or GTA IV
+ Half-Life 2 is Nr.1
+ Battlefield 1942 is actually on the list and not Battlefield 2
+ Star Wars KOTOR is 3rd
+ Fallout 3 my game of the gen (thus far) is on it
- Uncharted 2 shouldn't be there
- Don't know why Shadow of the Colossus is on the list
Never played Okami, but I have the feeling I wouldn't set it on this list either.