If you haven't checked it out yet, I suggest you read my first versus article, Wii vs. Wii U:
https://mariofromnintendo.blogspot.com/2021/09/wii-vs-wii-u.html
Please note that both are hybrid consoles, meaning, you can play it both as handheld and on the TV.
Wii U:
Let you play Wii games.
HD.
Confusing (Wii accessory or new system?).
Lacked third-party support.
Switch:
Most Wii U games have been ported here.
HD.
Includes Pro Controller.
Has Joy-Cons, allowing tabletop mode.
Winner: Switch
Judges (I just came up with them!):
Judge #1: Wii U
Judge #2: Switch
Judge #3: Switch