This is a tricky one for me; I didn't own an Xbox One or a Vita, but I have played a lot of the former's games on Switch and PS5.
I did own a Wii U, and while it did have some excellent games, the droughts between them were terrible.
Xbox One has more good games, by a country mile, just by virtue of having good third party support. On the other hand, it lacks worthwhile exclusives, so the PS4 made it feel kind of redundant. Wii U justified its existence somewhat with the likes of Mario Kart 8, Splatoon, Tropical Freeze, etc, but if you weren't into Nintendo games or wanted a primary console it was a poor choice.
The Vita never held much interest for me, as I'd rather play on the TV.