I remember you saying you stopped playing one of the Call of Duty's because of how overly competitve it got on with kids that have razor sharp reflexes. I'd imagine that's less of a problem on the Wii version. For the same reason I'd imagine the added precision from a mouse isn't much of a bonus for you.
You're a self-proclaimed graphic whore, but for high-end PC's, so I'd wager you've seen things much more impressive graphically then Call of Duty: World of War, and from everything I read the graphics haven't changed much from Call of Duty 4, so that probably takes some of the excitement out of it.
Lastly, you said it's based on what feels more realistic and immersive, and that seems to favor the Wii Remote since holding it is closer to holding a gun then dragging a mouse around. Assuming the motion controls aren't completely bonked like they were in Call of Duty 3, I'd imagine you'd pick the Wii.
