http://majornelson.com/archive/2009/02/17/live-activity-for-week-of-february-9th.aspx

Xbox 360 Top Live Titles (based on UU’s)

1    Call of Duty: WaW
2    Halo 3
3    Call of Duty 4
4    Gears of War 2
5    Halo Wars Demo
6    GTA IV
7    Left 4 Dead
8    Tom Clancy's H.A.W.X: Rio Demo
9    FIFA 09
10  RESIDENT EVIL 5 Demo

Top Arcade Titles (Full Versions purchased)

1    3 on 3 NHL(TM) Arcade
2    Castle Crashers
3    Worms
4    R-Type Dimensions
5    Super Street Fighter II Turbo HD Remix
6    UNO
7    A Kingdom for Keflings
8    Minesweeper Flags
9    The Maw
10   Ultimate Mortal Kombat 3

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    Counter-Strike
4    Fable
5    Street Fighter Anniv.
6    Splinter Cell Chaos
7    Conker: Live Reloaded
8    Splinter Cell Chaos
9    Doom 3
10   Call of Duty 3

Top Community Games NEW! (Full Versions purchased)

1    RC-AirSim
2    Rumble Massage
3    Miner Dig Deep
4    Bowling X
5    Golden Royal Blackjack
6    Remote Masseuse
7    Simply HangMan
8    Air Legends
9    A Game of Tennis
10   Ocean Scenes

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

3 demos in the top 10 but other than that its the same top 10. Also there were 2 million downloads of Halo Wars so the top 4 each would have at least 2 million unique users for the week.

Wonder how SF4 and GTA4 will do next week.

I didn't even think about the 2 million HW downloads thing. That means that the top 4 games had over 2 million unique users each. And no telling how much more. Very impressive.

On a side note, I wish they gave out concrete numbers on these things. It would be much more interesting.