st3lt3k

Rear Admiral
Top Worldwide Xbox Live Arcade Titles to date

Top worldwide Xbox LIVE Arcade titles on Xbox 360 to date (based on total number of full game downloads):

1. Street Fighter II' Hyper Fighting
2. Bankshot Billiards 2
3. Marble Blast Ultra
4. UNO
5. DOOM

Xbox 360 | Momentum Fact Sheet
 
XBox Live is up to six million subscribers as of this week. Here's a few other interesting stats they announced today.

--10 million Xbox 360s have hit stores across 37 countries
--Xbox 360 software attach rate (games sold per console) is 4.6 in the US; accessory attach rate stands at 2.9
--2.3 billion hours (260,000 years) have been logged on Xbox Live since its debut in November 2002; Halo 2 leads all games with 710 million hours
--Average Gold level XBL subscriber has 22 friends on their friends list
--more than 2 million text and voice messages are sent over Xbox Live on an average day
--almost 300 million achievements have been unlocked for a total Gamerscore of almost 7.5 billion
--XBL Arcade downloads have topped 25 million; Street Fighter II' Hyper Fighting, Bankshot Billiards, Marble Blast Ultra, UNO, DOOM are the top downloaded games, in that order
--Xbox LIVE Arcade has been an instant hit on the Xbox 360, with nearly 70% of all connected consoles already downloading and playing Xbox LIVE Arcade titles.