I got the Wii U just for Smash 4, and Smash, Splatoon and Bayonetta are the only things I've played on it. I hate the controller; it's ing bulky and useless. At least with Smash, I could use the (16-year-old) Gamecube controller, which is kind of ty, too, if I'm being honest. But I had to play through Bayonetta with that ty ing Wii U controller.
The Gamecube was the last Nintendo console that wasn't based on one big gimmick. They struck gold with the Wii's gimmick, then went back to the well too soon with the Wii U and paid for it. Now they have released yet another gimmick console instead of making one with actual controllers, that can perform on the level of the PS4 and XBone.