Super Mario 3D world is a really good game. The issue with it is, it's just another Mario game. Mario has become a yearly release with either a 2D or 3D Mario coming out late each year. The are usually still good games, but don't vary enough game to game to be new.

Of the games I have for the Wii U. The Wonderful 101 which is a new IP and Pikmin 3 are the ones I am most interested in. Because it's a new IP, and a game that was not in the last generation getting a sequel. I'll get to playing them soon. Things like Wind Waker HD while I'm glad was ported to the Wii U, can still be played on the Wii if you have an old enough model with backwards compatibility.

I'll wait until E3. I need something to get excited about on the Wii U. Zelda U will probably be announched, but we need more than that.