The Wii U had some good games, but I think people really over value it with rose-colored glasses. Between 2012 and 2017 the top games (rating wise) for the Wii U are:
-Breath of the Wild
-Super Mario 3D World
-Super Smash Bros Wii U
-Rayman Legends
-Bayonetta 2
-Windwaker HD
-Guacamelee
-Skylanders Swap Force
-Axiom Verge
-Deus Ex: Human Revolution

For the N64 the top rated games were:
-Ocarina of Time
-Perfect Dark
-007: Goldeneye
-Majoras Mask
-Super Mario 64
-Paper Mario
-Banjo Kazooie
-Wave Race 64
-Conkers Bad Fur Day
-Mario Tennis

I mean, just by comparing those lists I see a lot more Nintendo mainstay quality titles, and games that are still being mentioned even to this day. Meanwhile, two of the Wii U top games are indies (nothing wrong with indies just not big titles), one is a remaster, and one of them is a port of a "last gen" game.