I still have 3 CoD games on Wii and Black Ops 2 on Wii U.
I liked the way these games felt on Wii. My Wii favorite is still World at War. I think nowadays the games aged a bit.
Black Ops 2 on Wii U suffered from frame drops and played bad with Gamepad on TV, but it still was a good version to have.
I was also pretty impressed by the Wii U port of Ghosts, nowadays I have this on PS4, well it's not the best CoD but it had a good campain.