The Wii u was better (when the game developer used it correctly), it was a separate screen that showed different content. It was more like a DS.
Some of the games in Nintendo land were excellent local multiplayer games that will never get replicated again. They made great use of the second screen concepts.
I loved playing hyrule warriors (the first one) on it, because you could play local co-op but not split screen, without needing another unit. It was an absolutely superior experience to split screen.
I wish there was something similar with a higher quality screen, but I think that ship has probably sailed.
I know, I had one, but it also had a base station that was the actual processing unit connected to the TV, so the handheld was essentially a remote monitor. Aka this meme doesn't work because it's missing half the wiiU unit.