A list in no particular order, but WoW is my favorite over all.
1: World of Warcraft
2: Star Trek Elite Force I & II
3: Star Wars Battlefront II
4: Pokemon Platinum
5: Spyro The Dragon
6: Jak 3
7: Gran Turismo 4
8: Halo 2
9: Super Mario World: Super Mario Advanced 2
10: The Legend of Zelda Twilight Princess