I have a Wii and a PC, but I call myself a PC gamer, not played on my wii for a bit, but thats down to the tv being out of action (My dad won't let me use it on the main tv, and my sister moved out and took the spare tvstand i was using)
But it does get its fair share of use, mostly DBZ:BT2, Lego Batman, No More Heroes and SSBB.
I buy a new game about twice a year though. As a pc gamer I make games last. TF2 and WAR will keep me a happy bunny for the rest of this year, and most of next PC wise!