I actually played this one years ago, back when I still had a Wii. Obviously without playing through it again it's all rose-tinted glasses, but I still have to say that this was a solid port of COD4, especially compared to the previous entries for the console.

I mean sure, the graphics look absolutely atrocious. But I mean, Paintball Mode, the addition of the co-op campaign plus being (I'm pretty sure) the first entry for the Wii to have online multiplayer, and a rather balanced and well designed one at that. It's not perfect, but you have to admit IW really worked with the limitations of the Wii rather than against them.