Games! Unlimited games, but no games.

No but really, very hard choice for me, but I'd probably pick the Wii U, Switch is a close second, but the Wii U is capable of playing GameCube games while the Switch can't, otherwise their capabilities are about the same, being able to play almost all of Nintendo's massive library of games, along with Sega's stuff too (and MSX and DS on Wii U as well)...so yeah probably Wii U