Small library, with a few gems.

This is what I ll remember Wii U for (the good parts):

Tokyo Mirage Sessions #FE
Citizens of Earth
Xenoblade Chronicles X
New Super Mario Bros. U
Captain Toad: Treasure Tracker
Rayman Legends
Mario Kart 8
Bayonetta 1+2
Super Mario 3D World (even if it was a meh 3D mario game)
The Legend of Zelda: Breath of the Wild (late release)