Wii - Maybe a new RE game and MOHH3.
XBox360 - Nothing, unless they finally include Wifi ($100 for wifi is a joke), and make XBox Live free (come on, they aren't even hosting game servers).
PS3 - I own one because of MGS4.
PSP/DS - Nothing, I don't have time to play games except when I'm at home, and I'd very much rather play on my 37" or 65" TV than a 3" screen.