It would be nice, unfortunately this was a problem with smash bros as well. The color swaps arent as distinct. When you play the actual game and have at least 2 costumes and color swaps like black kratos that should give enough variety to help distinguish yoru character.
Now that I think about it. How would you guys think about that Nickname system that SSBM & SSBB had that actually is better... Would you guys prefer a SB/PSASBR version of that. Dont get me wrong, im not saying we shouldn't have the alt colors. Im saying for ppl who have similar colors what would you think of a SB version of a NN system...?