OP: Launch games never look very good, 3rd parties especially, they have a lot less time and experience with the dev kits. Some of the ports the Wii U has gotten actually look slightly better and the Wii U's GPU is easily more capable than the PS3 and the 360's.
Remember PS3 and 360 launch titles? Compare them to what we see now, 2nd and 3rd generation engines and optimization on the kits make a world of difference. Call of Duty 3 on PS3 and Perfect Dark: Zero on 360 both looked like shit back when they released, I remember seeing them and thinking; "Man, is this the next generation of games?!!"
I guess what I'm saying is; its all good, reports on the Wii U's "terrible" hardware performance are likely heavily exaggerated and judging by 1st generation launch titles and aging ports is a bad measure at any rate.







