Switch. If you really want to play hyrule warriors you could always buy a 3DS since that has it on there and plenty of other zelda games you can get. Otherwise the switch just has breath of the wild
Switch, as someone who lost my Wii U in a housefire and has no desire to get one ever again, you'll be better off. I get the feeling most of the Wii U library will somehow end up getting ported.
Also someone mentioned donating money / electronics to OP.
Unfortunately that's against our rules because Op could be making up the story to try and scam people. Obviously that's probably not the situation here but to avoid things like that we just don't allow donations in this group as a rule. There are plenty of other groups who can help you out though.
~Admin
It's honestly a matter of what you want, I'd say if you're wanting any of Nintendo's up coming games I'd go with the Switch, you can always buy a Wii U later at a used games store and reacquire your old games that way! But personally I'd be rolling up to that asshat and taking my games back! That's just me being agro though, you do whatever makes you happy hun!
If you paid for them and they were yours, get them back. It would be my mission to ruin every aspect of her life until everything was returned in the condition I left it in