Honestly just implementing 2 out of 3 in Ranked, like every other fighting game has, would resolve the competitive mode in player matches issue.
I agree the gear system UI is a hot ass mess.
Inputs are a problem particularly the d,b,f inputs which are just bizarre and tend to turn into other things you don't want. Or things like Ivy's b2,d2. It should just be b2,2.
This is an off-the-cuff one, but why can't we choose Assists for Versus mode, like custom Test Your Luck in MK? The Assist mechanic is so fun and it's wasted on single-player multiverse. If I'm playing a friend it would be awesome to have a mode where we can each pick an Assist character and sort of play Mahvel-flavored Injustice. (Personally I miss tag mode desperately, but if we're not getting tag mode at least give us this.)