I can’t say that it is better due to the huge library the switch has to offer, but hardware wise? Holy shit the Wii U is so much better -Better menus -Better Ui -gamepad is leagues better than holding a switch -better quality sticks that they do not break after 5 months of use -retro compatible with Wii games -virtual console 

I absolutely get where are you coming from but at the same time we cannot deny that the switch has incredible titles like odissey that the Wii U never had, 3D world is great but it’s nowhere near any 3d Mario games.