I would much rather have Dark/Fighting/Psychic starters. Would make a nice change and there's nothing unbalanced about it.
Psychic=/=damage to Dark type.
But then why would you even use the move, on the other type is supposed to resist
A point mentioned many times. Apparently, the "unbalanced!1!" crew seems to think that it's a perfectly natural thing to throw only starter STAB moves at everything, including your rival's starter.
In the first two gens, I suppose you could win like this. In theory. But it wouldn't be much fun.
Of course, now the third gen came along, and a STAB-only Fire starter can get walled by a Vulpix, so... yeah. --- Creator of Jay's Journey (see quote!) "It's not ten years old! Therefore, it sucks!" - Nostalgia whores everywhere