Like with Joker, I took a look at
Hero's datamined statistics (special thanks to Meshima) and compared them to the
patch when we first found them. It's always interesting to know how the characters changed during development, and this is one of the few times that we actually get a view into that through the data. Anyway, to start:
Run Speed: 1.74 > 1.84, got a nice speed bump to 26th place right behind WFT. Nothing too big, but he broke away from being almost completely in the middle of the pack.
Weight: 101 > 101 Nothing changed! Looks like they were satisfied with where the character was and did nothing to shake it up. Lands him right between the middleweight (Cloud) and heavyweight (Mega Man) classes, so he's kind of both and neither in a sense.
Air Acceleration (basically how fast he's able to reach his top air speed): 0.055 > 0.055 Again, nothing changed, but it's pretty low vs. the rest of the cast (he sits at #60, above Mii Gunner). He may've appreciated a positive change there, though that may be intentional considering the next point.
Air speed: 1.14 > 1.01 Oomph, it doesn't look like much, but that's a pretty notable hit. He dropped from 25th to 52nd to tie with Squirtle, which puts him in the lower half of the cast. It seems like the intent is to make him sluggish in the air, which may be a potential weakness for the character depending on how he covers it.
Other then that, no other stats were recorded, but you can see the rest of his current ones in the above link. In terms of how he compares, his initial dash speed is #45 above Corrin, walk speed is #55 just above Kirby, fall and fastfall speed are #45 behind Inklings.