Seems like a pretty pointless comparison in my opinion. The PS3/360/Wii comparisons are more "logical" (and i use that word lightly) in that you are comparing apples with apples.
Unfortunately some years ago (around the time that I started working funnily enough) I started gaming less and less and couldn't see the point of the constant upgrading of PC hardware, the battle to get things to run optimally and missing out on certain console exclusives so I purchased a PS2, my first console since the Sega Megadrive back in the early 90's.
I now had a gaming system that I could slap a disc into, have it boot up and be playing within seconds which was far more suited to the working man with only an hour or two's gaming time in the evenings. Weekends that were not too busy in terms of social life were dedicated to long sessions with various RPGs or frantic 2 player battles with friends while relaxing in the lounge.
The PS2 came and went and the newest, and imo best, console...the Xbox360 was released bringing all manner of new, beautifully presented games to my home's entertainment area and also a way to game online when friends had returned home.
I happened to have upgraded about 2 months ago and my new PC's specs are fairly high (Crysis and co. all run at high detail levels and @ 1680x1050), yet I cannot bring myself to fiddle around in order to play games anymore. I'm far more relaxed away from a PC screen (which I'm in front of for 8 hours a day), on the couch, with a wireless controller in my hand and gaming away with the precious leisure time that I do have.