You mentioned that you like WRPG, in that case the 360 is a must have unless you already have a gaming PC. I don't want to talk bad about the PS3 but in the WRPG department it really isnt competition for the 360. Sure with Bioware going multiplat they arent missing out on future AAA WRPG but the 360 already has Mass Effect 1/2. Those games are mustbuys for any selfrespecting WRPG fan. Then there is also Fable 2 and a good amount of PC/360 exclusive WRPG such as Divinity 2 and Two Worlds.
The PC still has many exclusive WRPG but most of them are just the classics and with Fable 2 being exclusive the 360 is the best gaming platform this gen when it comes to WRPG.
EDIT: I forget to mention but with the 360 you also have access to lastgen's best WRPG. Games like Morrowind, Fable, Knights of the old Republic and Jade Empire.
