Rented CoD3 and I wasn't a big fan. But I am looking forward to Call of Duty 5 on the Wii. If they learned from MOH:H2 controls then it could be a solid game. Obviously i'm not a fan of yet another generic WWII shooter which is probably what Treyarch is going to throw our way but it's better than nothing and i'm thinking a bit more longterm.
Infinity Ward for whatever reason didn't touch the Wii with CoD4. Even the DS got a port (albeit from another developer). I'm hoping if CoD5 is good and sales go well the Wii could get more FPS support. Obviously its FPS will never compete with 360/PS3 in terms of graphics but the controls in MOH are so solid i'd be willing to play with toned down textures and whatnot.