Xbox 360 Top Live Titles (based on UU’s)
1    Halo 3
2    Gears of War 2
3    CoD: World at War
4    Call of Duty 4
5    GTA IV
6    Fable II
7    Left 4 Dead
8    Madden NFL 09
9    Fallout 3
10   FIFA 09

Top Arcade Titles (Full Versions purchased)
1    Super Street Fighter II Turbo HD Remix
2    A Kingdom for Keflings
3    UNO
4    Castle Crashers
5    Worms
6    Portal: Still Alive
7    Ultimate Mortal Kombat 3
8    Aegis Wing
9    Bomberman Live
10   Assault Heroes
The above arcade list is based on full versions purchased.

Original Xbox Top Live Titles (based on UU’s)
1    Halo 2
2    Star Wars: Battlfrnt 2
3    Fable
4    Counter-Strike
5    Call of Duty 3
6    Battlefield 2: MC
7    Conker: Live Reloaded
8    Street Fighter Anniv.
9    Star Wars: Battlefront
10   Splinter Cell Chaos

These lists are based on global unique users connected to Xbox Live or in the case of Arcade, full versions purchased that week.