5. Project Gotham Racing 4 (fantastic and true to the series' roots).

4. God of War II (ridiculously satisfying sequel to a brilliant original).

3. Forza Motorsport II (yet another superb racing sequel, one of my favorities in the racing genre yet).

2. BioShock (a masterful work of story-telling and moral judgement).

1. Halo 3 (Best. Game. Ever. No need for another word.).