I'm a big fan of controls. To me, everything else is gravy. So, I would have to go with CoD4 on this one. For a non-Wii console, the controls in CoD4 should be what all FPS dev.'s should aim for.
My End of 2008 Hardware Predictions (console only):
Wii : 50 million
360: 28 million
PS3: 24 million
These predictions were made on January 3rd and won't be revised