So maybe someone here is knowledgeable about charged attacks, because on my 3DS with the last patch, Zelda's fully charged Fsmash does 26% consistently to Bowser Jr. I go to the WiiU and it kept doing 21% to him. I tried ZSS and it did 23% to her.
I have no idea how I am getting the inconsistency, but I do know that it looks like they don't do as much damage. This is overall minor, but maybe I am doing something wrong.
EDIT: I'm getting 23% on Kirby and I'm moving through, so I dunno what that was about. It could have been the stage being slightly angled.
EDIT 2: Nevermind, I guess BJr takes more damage to himself personally than if you hit his vehicle... dunno if that was always a thing. Derp.