If I had to choose between a PS3 and a 360 I would choose a nice juicy girl with fat tits from my local bar. It's cheaper and entertains ya too.
With games such as Uncharted 2, GOW3, InFamous and MGS4 made exclusive, do you need another reason to get the PS3?
since there's no feeling like sticking a new GPU into your PCI-E slot.