Sorry if I made this seem like a debate; I guess I'm just naturally wordy? 
I really do think they hit a lot of key franchises for the Wii U, as far as it concerns 1st party games. On paper, XBC, MK, SSB4, Star Fox, and a bunch of Mario games, and Kirby and Yoshi, all of that looks like it should have sold pretty well. In theory, that should have driven lots of sales, and I imagine it's what's kept the Wii U afloat for now. But that lack of 3rd party games... Even Nintendo can't sell an entire system with just their games alone. That's the a big reason why I turned away from the Wii U and focused on my 3DS for Nintendo gaming. I mean, it's kind of ridiculous when I compare everything that's offered on the 3DS versus the Wii U, even accounting for the fact that the 3DS is older.
Back to other topics, one thing I hope gets addressed with the Switch, though, is battery life. I heard it's around 3 hours. That's not... the best. But it's also not terrible. I mean, most of my gaming sessions aren't that long, so whenever I'm done, I can easily see myself putting the Switch back in its dock to charge. But I can see that being a problem for true portability. The 4-5 hour mark would be a good minimum. However, I don't really plan to take it outside the house.
I really do think they hit a lot of key franchises for the Wii U, as far as it concerns 1st party games. On paper, XBC, MK, SSB4, Star Fox, and a bunch of Mario games, and Kirby and Yoshi, all of that looks like it should have sold pretty well. In theory, that should have driven lots of sales, and I imagine it's what's kept the Wii U afloat for now. But that lack of 3rd party games... Even Nintendo can't sell an entire system with just their games alone. That's the a big reason why I turned away from the Wii U and focused on my 3DS for Nintendo gaming. I mean, it's kind of ridiculous when I compare everything that's offered on the 3DS versus the Wii U, even accounting for the fact that the 3DS is older.
Spoiler: (Show Spoiler)
Back to other topics, one thing I hope gets addressed with the Switch, though, is battery life. I heard it's around 3 hours. That's not... the best. But it's also not terrible. I mean, most of my gaming sessions aren't that long, so whenever I'm done, I can easily see myself putting the Switch back in its dock to charge. But I can see that being a problem for true portability. The 4-5 hour mark would be a good minimum. However, I don't really plan to take it outside the house.