You see a Wii, 360, PS3, and PC. All of them have all the latest releases. Which do you play first?
I think I would start with some Crysis. After that some Mass Effect, then Ratchet & Clank, followed by some Super Mario Galaxy.
My point is, I think we are at a time in this "war" where you can have any system and still win. Course, the guy with all of them wins, but not as much as the guy with a girlfriend. Or the girl with all of them.