E3 convinced me to go ahead and get a PC. Everything that looked interesting there was either a year away or also coming out for the 360. I got my PC this week and I'm loving it.
Next year I'll evaluate the whole PS4 vs Xbox One thing again. WiiU would be an impuse purchase to get either a Zelda, Metriod Prime or Mario Galaxy. But only one of those is even announced, so it'll probably be a long time.