(edit) Nintendo gamers say Black ops 2 on the Wii U game pad is the shi*, does that mean that these types of games really could be great on the vita?

[IIIIITHE1IIIII]

No. That is not a valid conclusion.

The Wii U won't leave the house, so it will still be connected to the TV. If people enjoy the title more on the Wii U than on other consoles that is most probably because the screen on the controller offers smoother gameplay. Not because they like to play the title on a small screen.

Still, whether this type of games will be good on the Vita has nothing to do with the Wii U. Just look at Call of Duty: Declassified and you should be able to identify the real problem.