Just because they're the most played games, doesn't mean that they're the best. Especially in the case of Fable II Pub Games.

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

1 Halo 3
2 Call of Duty 4
3 GTA IV
4 Gears of War 2v 5 Gears of War
6 CoD: World at War
7 Guitar Hero III
8 Battlefield: Bad Company Demo
9 Star Wars: The Force Unleashed Demo
10 Rock Band
11 Fable II
12 Mirror's Edge Demo
13 Madden NFL 09
14 BF: Bad Company
15 Rainbow Six Vegas 2
16 UNO
17 Castle Crashers
18 COD: World at War Multiplayer Beta
19 Forza Motorsport 2
20 Too Human - Demo

Top Arcade Titles (Full Versions purchased)

1 Castle Crashers
2 Geometry Wars: Retro Evolved 2
3 Braid
4 A Kingdom for Keflings
5 UNOv 6 Super Street Fighter II Turbo HD Remix
7 Fable II Pub Games
8 Duke Nukem 3D
9 Bionic Commando: Rearmed
10 Worms
11 SOULCALIBUR
12 Portal: Still Alive
13 DOOM
14 1942: Joint Strike
15 Bomberman Live
16 MEGA MAN 9
17 N+
18 Wolf of the Battlefield: Commando 3
19 Marble Blast Ultra
20 Ultimate Mortal Kombat 3