I have to say Wii U "won" even if Vita's reported figures by some sources hit over 15 million units.
Wii U had some iconic titles like Super Mario 3D World, Mario Kart 8, and The Legend of Zelda: Breath of the Wild (cross-gen, but still).
What exclusives did Vita have from any publisher that competes with that?
Sony abandoned the handheld space because of Vita. Nintendo went hybrid with Switch and some of Wii U is in the DNA. Admittedly, Nintendo has never made another piece of hardware that's a home console only (not even any versions of Switch or Switch 2) after Wii U which is significant.
Both lost pretty thoroughly. Wii U was annihilated by Sony and Microsoft, and 3DS destroyed Vita as well.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 122 million (was 105 million, then 115 million) Xbox Series X/S: 38 million (was 60 million, then 67 million, then 57 million. then 48 million. then 40 million)
Switch 2: 120 million (was 116 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima
