Lol, really? So you would say Mario kart 7, Smash bros 3Ds, Super Mario bros 3ds, 3D land is better than its more sophisticated and ambitious counterparts on Wii U? in dont think so.
The wii U has the best 2D Mario (including the amazing luigi expansion) it has the best Donkey Kong, The best Pikmin, it has the best Yoshi game, it has the best Kirby, it has the. best Smash Bros, it has the best MArio Kart, it has an absolute brilliant 3D Super Mario game that brings the best Mario World has to offer. It has a Crazy ambitious RPG (xenoblade X) which is not very common for nintendo consoles, it has a great selection of party games (nintendo land, wiiu sports Club, mario party U and MP 10) and im just mentioning these because you brought it up, party games are shovelware anyway. Then you have 2 phenomenon called Splatoon and Mario Maker, Which i dont care for but fans absolutely love them. On top of that it has the definitive version of Wind Waker and Twilight princess, putting it together with Breath of The Wild, which is still first and foremost a Wii U game, just like TP was a GC game.
So yeah, its definitely for the fans. In fact the biggest problem of the Wii U is that it was only for the fans. Leaving everyone else behind. And honestly nothing about the switch suggests it will be better, given how gimmicky they device is.