PlayStation 3 all the way. Sure, X-Box 360 has a better GPU and a FEW good games (Halo 3, Gears of War 2, etc.) the PlayStation 3 is just a much better console in my opinion. C'mon, Blu-ray > HDDVD.
On controllers, sure the X-Box 360 is better for shooters because of the lay out and buttons but it's like trying to use a fucking brick. The PlayStation 3 controller is very light including the DualAxis 3 controller.
To all you talking about connectivity to PC, you just got lolpwnt.
Anyways, this is my opinion. You can buy whatever console you want as I won't care. Kthxbai.