Well, I have both a PS3 and a PC to play games on but if I had to pick just one right now it'd be my PS3 because most of the games I like are only available on consoles or only on PS3.
This is my list of PS3 games:
Metal Gear Solid 4: Guns of The Patriots, God of War III, Final Fantasy XIII, Nier, Bayonetta, Yakuza 3, Vanquish, Castlevania: Lords of Shadow, Resonance of Fate, Shadows of the Damned, Resident Evil 5: Gold Edition, Heavy Rain, Devil May Cry HD Collection, Yakuza 4, Tekken Tag Tournament 2, Resident Evil 6.
How many of those games can I play if I switched to PC only right now? besides, there are some games that I want to buy and still haven't like Asura's Wrath, Dragon's Dogma, Final Fantasy XIII-2, Yakuza: Dead Souls, etc that also are only on consoles and I'm waiting for Metal Gear Rising: Revengeance, Beyond: Two Souls, Final Fantasy XIII: Lightning Returns, Final Fantasy Versus XIII, Metal Gear Solid: Ground Zeroes, Yakuza 5 and I don't remember anything else, lol.
I'm more of a console gamer than a PC gamer mainly because of my taste in video games and the lack of availability of games that I like on PC.
If all those games, or the majority of them were on PC, I'd be a PC gamer :P I'd prefer playing all those games on PC, Playing Resident Evil 5 on PC "maxed out" in 1920x1080@60FPS with a PS3 Controller feels much better than playing it on PS3... I just wish the Gold Edition was available on PC though :S oh, and Devil May Cry 4 on PC is just glorious, I just don't need the PS3 version of that one because it doesn't have any extras... not even trophies.
Well, in short, I prefer consoles right now. But I'd most probably prefer PC if the games I like were available on it.