This is just going to turn into a fanboy warzone but from what I've seen I think that it's pretty much equal, PS3 has a smoother frame rate but more bugs and the 360 one is the contrary.
Also, say why you think it's better on the PS3.
I liked it but somehow it didn't have that cool GTA feeling you had with the previous one.
I agree with Charger, not the best in the series but still great.
Fifty million dollars would like to have a talk with you.
Lol, owned.
I don't think anyone would buy a console just for a game so just stick to the console that suits you the most.