Vegeta, without a doubt, has to be a weavile!! It has the attitude, the same default pose, the perfect colour scheme. complete with white gloves!! Plus in the DBZ anime, Vegete was shown with red hair, which I like to reference in my designs sometimes (red streaks in the pony's mane).

The dark typing is obviously a must too (dark pulse replaces the gallik gun).

Another plus is that, since I also made bulma a glaceon, both he and bulma make believable parents for Trunks (who HAS to be an absol, no argument).

Goku on the other hand thematically should be an infernape. orange, monkey, fighting-type, journey to the west inspiration, etc. but I could never see him as one. For one the design doesn't quite fit his vibe, and I see Goku as more of an electric-type.

So he's a shiny luxray instead!! <3