PC, hands down.
But I would obviously say that, as I've been biased towards the PC all my serious gaming life.
The main plus is framerates over 40fps and higher resolutions, graphicswise.
Controlwise, pinpoint accuracy, no auto-aim (which I find ends up getting me killed as it aims for their body and not their head), you're as fast as you are, not as fast as the brown townogue sticks.