I really wished Smash 4 had a palette maker like in Soul Calibur 3 -- I think it started in 3 --, Tekken 5? and onward, and the King of Fighters XIII -- don't know it'll return in KoF XIV. Mods are going to allow it, but if people could just make them without having to mod the game to recolor stuff, it would just be more convenient.
Also, really miss Falco's red alt from Melee and Brawl. Doesn't help when his current red alt is everything pink-red with pink greaves. Yeah, I love how a shade of pink contrasts a shade of pink. It's so awesome rocking that and his orange everything alt when, y'know, his old orange alt had a yellow jacket to make it pop, but nope. Oh, and great work giving Falco a purple alt that references Krystal, his best friend's wife. WHAT THE HELL? Meanwhile, 4 shades of blue and 2 shades of purple, Lucario. While I don't like dark alts, I kind of wished some of them weren't just make everything black. Could have given Falco and Fox bomber jacket alts; brown jacket and black or khaki flight suit would have worked fine as their dark alts, but nope, let's make them look edgey as hell... Could have at least made them look like greasers or something... Or give Falco an Adventures-themed alt.
Seriously though, Falco's Melee and Brawl red alt was awesome. Only weird thing is the person who made it tried to emulate his metal boots which doesn't really work when he's wearing leather? boots with metal greaves.
There's stuff like Fox with Falco's Smash 4 blue alt, Fox with a
Mountain Dew Voltage inspired alt which looks pretty nifty since it's nothing crazy -- just Fox with a blue jacket, black flight suit, and white scarf -- I think it just works because the outfit makes Fox "look like a generic hero" --, or Cloud with a Dante alt which kind of works since Cloud's Advent Children works to resemble Dante's DMC2 outfit. Really awesome and would have been more awesome if it was an in-game feature. Also, ZSS with a D.Va alt.