Wiped on 02 October 2012
I'd say Nintendo Land. I know, it's a party game, but if anything is going to show off the console, it's that. It's clearly designed to utilise the different functions of the controller and even if you're only going to play single-player, it can be played that way.
If you're dead set against that, I'd say New Super Mario Bros. U or COD BLOPS 2.
