Yeah the Wii U has a fair few excellent games now, but actually owning one during its time was constantly frustrating and consisted mostly of sitting around waiting through months of nothing for the next worthwhile release.
The fact that the Xbone had way, way more games makes me hypothesize that it would have been a better primary console. On the other hand, I can think of almost nothing on Xbox One that I'd consider worth playing that's not on PS4/Switch.
Really comes down to exclusives vs third party.