On your GTA5 note, according to Take 2 the sales of GTA4 were split 50/50 between the PS3 and the 360 back in March of last year. It's likely our tracking is slightly off and the 360 version is overtracked and/or the PS3 version is undertracked despite the 360 exclusive advertising and the "exclusive" DLC.
GTA4 sold more on the PS3 in Japan.
GTA4 sold more on the PS3 in EMEAA regions.
GTA4 sold more on the 360 in America.
GTA5 isn't going exclusive to anything if it releases this Generation.
Same goes for Prototype probably. There is a 200k unit split between both versions of the original, with PS3 winning in EMEAA and 360 leading in NA. There is a big base for this type of game on the PS3 too, with inFamous being able to sell 1.7 Million units.
My choices for 360 next year...
Gears 3
Halo Combat Evolved HD Remake.
Halo 2 HD Remake. (With both maybe releasing as a collection)
Halo Wars 2 or Age of Empires 4.
Left 4 Dead 3
Multiple Kinect games...
Edit: Forgot about Rare. Here's hoping for a REAL Banjo Kazooie game!
