Consoles. My PC is rubbishly terrible and can only just about run Homeworld, anything else is too much for it. But I prefer consoles anyway - I was raised playing shooters on them, so I find the controller better than the mouse+WASD for them. Most other game genres (apart from RTS and point-click adventures, both of which require - require I say, don't bring up any of this console RTS bullcrap - a mouse) I think work better on console, though I may be forgetting some. And don't say "just buy a controller for your PC" - what's the point, when you have a console which already has a controller attached?
Consoles are also way easier to use. I've lost count of the threads I've encountered on here with some guy saying "Help, this game doesn't work" and getting loads of responses consisting entirely of incomprehensible computer jargon. PC geeks who like to tinker around with their machine might like this, but I don't as I am useless with computers and understand nothing about them. Oh, and then there's the way you don't have to install a game before playing it on a console, so no faffing about with CD keys or selecting exactly the right options. And then there's the lack of Ubisoft-style DRM on consoles (I think), and the way my 360 gets the Halo games...