So far, I've got

ARMS: bought it for a party, tried it, apparently hit on the absolute most vile nemesis heroes known to man according to the sub, had negative zero fun, haven't tried it again

Xenoblade chronicles 2: Having a blast with it

Mario: Eh, the motion controls are a huge turn off for me, and I haven't bought a traditional controller yet.

Splatoon: Kind of see previous; I really don't like waving my hands/arms around to aim, and the game feels really bad if you disable that. I'm a huge fan of the series but fuck me gently with a sideways goat they need to implement traditional style controls that don't feel bad.

What are the 'must have' games otherwise? Zelda is on there somewhere. I've also got a PC and a PS4, so anything cross platform I'll play there for better performance.