Fixed.
As a Sega fan, I have to say all three.
If I were limited to two, I really don't know which ones I would pick. Without a home theater, I wouldn't get the PS3 because most of the benefits are eliminated without one. I honestly thought I was fine with 360 + Wii for a long time, but then I got a home theater setup and changed my opinion very quickly. And I'm extremely happy that I went with one, because MGS4 was such an amazing experience. Valkyria Chronicles followed that up right after - the CANVAS engine looks phenomenal.