None.
If I yearn for the console experience it should be an easy task to lower my PC game to low detail, force a low resolution, and blank off most of the keyboard commands.
I mainly game on my PC. I've had many consoles over the many years, but I keep coming back to the PC. Just cant beat it. I currently still have a PS3 and Xbox 360 (though I don't play the Xbox 360 anymore). Will not be getting the PS4 or the Xbox One for at least a couple more years (when the prices are a lot cheaper).
I would have a console if they were worth anything. I gave my 360 to my brother-in-law a long time ago. The new consoles just have nothing going for them I can see over even a mild PC build and I have one of those on each TV (house wired with central HTPC configurations). So put me down for 'None' again. I would have both if they were more then they are.