John Carmack reckons PCs are still better for FPS. He probably knows what he's talking about, so it's best to agree with him.
"The keyboard/mouse interface is definitely still the superior interface for a competitive first-person shooter experience, much better than an analog joypad," he told PC Gamer.
PCs are better than consoles at other things too, apparently.
"The browser environment is faster—navigating web pages on the console is a really tedious experience... And I do think there’s the whole idea of PCs being everywhere, and having a game that you can play just about anywhere. Anywhere there’s a PC, if you’ve got a few minutes you can download Quake Live content and jump in and play your game," he said.
And there you have it. Consoles: rubbish.
More through there.