I would say PRG on 360 all the way ... think Fable 2 and Oblivion lol.
Well I never really liked Fable, but Oblivion is great, its coming out on the PS3 too though, so I'd still say PS3 for me. But the only reason I think this is for Final Fantasy, favourite game, if 360 had Final Fantasy games, 11 doesn't count, I would probably think more of the 360, but still buy the PS3 because well.. I'm just used to playing it on the Playstation and Playstation 2.
Lol. You can't say not to get a console just because it came out in 2005, it's still an amazing console with the best online I've seen, then again it's the only one I have seen, but it's impressive! I would recommend it even though I don't want it myself. I'll just have to wait and see how good the online for Wii and PS3 will be.