Well, right now, it's the 360 by far.
Just for reference, in the next few months:
Lost Odyssey
Eternal Sonata
Tales of Vesperia
Blue Dragon
Infinite Undiscovery
The Last Remnant
Star Ocean 4
Maybe in 2 years the PS3/Wii will catch up, but it's gonna be a while. XIII is now a multiplat, and new Mystwalker title should launch next year, and I'd bet, more likely than not, Verses will end up on the 360 as well.
I don't need your console war.
It feeds the rich while it buries the poor.
You're power hungry, spinnin' stories, and bein' graphics whores.
I don't need your console war.
NO NO, NO NO NO.