Craps....

For me i think pc is too complicated in hardware and software form made gaming is not as efficient as console which is built for gaming.Pc os alredi making the game is not as smooth as what u can see the diffrent in vista and xp. And 1 more thing the driver is play the important rule in pc too.But in console all is unified.So the game producer can fully ultize the hardware in console. But in pc diffrent hardware diff os diff driver.

LOL! LOL!
Btw xbox360 is good choice if want totally gaming as the game programming is specially design to the xbox360 platform.
But when come to IQ + Gaming.PC will serve.
IMO, pc facing driver issue more.That why the effieciency is so low.And beside that the resolution used in pc is very big compare to console.