So apparently by skimming through Zipzo's AMA Thread, I found out, color-wise...;
- Olimar has 2 sets of 4 skins, 4 Olimar Colors and 4 Alph Colors (leak thickens)
- Announcer/Game refers to the Alph costumes as Alph, not Olimar (I assume GK works this way as well, and maybe Dark Link)
- WF Mac has a Hoodie as well (I forget if the thread said the hoodie is also wireframed or not)
- While Olimar has 4 per Alt., Little Mac has 8 normal and 8 Wireframe (why, idunno.)
- Sonic has 1 Black and 1 White furred costumes, rest are shades of Blue
- Pac-Man's colors only change his shoes/gloves (and apparently gives him Socks on a color swap), no color changes what-so-ever (no Red/Pink/Blue/Orange Pac-Man *sadface*)
- Mega Man be swaggin' the Black n' Yellow
- No Helmetless/Protoman Mega Man costumes
- Pikachu has a color of a Hat with Shades on the front, a Fighter's Headband as a color and Ethan's Hat from Gold/Silver/HG/SS as a color
- Fox has a Wolf color (NOT COSTUME, JUST A COLOR SWAP)
- Robin's colors apparently only change gender/hair, not the robe (Not sure if the hair is style, color or both, I forget)
And probably other stuff too since I only skimmed through about the first 6-8 pages, and was too lazy to read the rest.
...Oh, by the way, apparently Chrom is in one of Robin's victory poses, like Doc Louis.