Well that was quick...

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

Top Arcade Titles (Full Versions purchased)
1  Worms
2  Portal: Still Alive
3  Castle Crashers
4 Vigilante 8: Arcade
5  Ultimate Mortal Kombat 3
6  UNO®
7 Are You Smarter Than a 5th Grader
8 Duke Nukem 3D
9 Pinball FX
10  Marble Blast Ultra

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 Call of Duty 2
8 Street Fighter Anniv.
9 Rainbow Six 3
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.