I'm not going to hate on the Wii U's controller just yet. Unlike the Wiimote, it actually has four face buttons, four bumpers/triggers, and two control sticks (or circle pads, whatever). If it's comfortable to hold for hours at a time and if those circle pads feel good (this is my biggest issue), then I don't see what the problem is. The button setup is very similar to that of the 360/PS3, so it shouldn't be challenging or limiting devs the way the Wiimote did.
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Watch and you'll see... someday I'll be... part of your world!