I dont know what platform to get it on!?!
If i get it on PS3, the gfx will be mint - but it will take me a fair bit of time to get used to it. Where as if i get it on PC, the gfx will be ok (not all on high or anything) - but i will take to it like a duck to water!
Pluss there will be a load of mods flying around for it on the pc!
I'm getting it for the 360, but if I had a good enough PC I definetly would get it for that.