Give Ike a higher full jump/double jump. Ledgehopped aerials are really difficult and Ike can no longer ledgehop side B back onto the stage.
Pit could use a slightly higher short hop so that he could auto cancel uair (mostly for chasing people on platforms). More full hop/double jump height too (so he could chase people better).
Marth could use a boost to his Full hop/double jump so that he's better at moving with platforms. He used to be able to just run off a platform on BF and double jump up to the next one, but now he just barely misses it. He could use a SH increase too, so that he can do stuff after his SH bair (besides just using his second jump. He used to be able to pull off a fair, which would aid in his retreat (since that's what you're doing most of the time with SH bairs).
Charizard's fine. He could use a higher full hop/double jump so he could go further out for edgeguards (I'm noticing a pattern here)
In general I think you should increase most character's full/ double jumps a little bit to counteract the upwards gravity (obviously characters with zero up grav would be exempt from this). I really wish you could do double jumps and full jumps seperately though (Snake's full jump is pitiful, but his double jump is so big)
Sonic could use a faster fast fall. There's pretty much no difference between normal fall and fast fall atm.
edit: And dash dancing still isn't working