[Happy Joe]

I would say; "It depends on the game and user interface."

FPS definitely PC, no game controller, that I have tried, can compete with the speed/accuracy of a mouse for targeting.

For character action games; Console as the game controller allows quick programming of moves.

Driving or vehicle simulations, with the appropriate interface (steering wheel/joystick etc.) PC, If only a generic interface/controller & TV is used console.

In all cases that I have so far tried; games that are ported from their native environment to operate on other devices are universally bad (in ported form), even when the parent game was great.

For group play I prefer a LAN made up of PCs.

Enjoy!