[@Mega Birb] Hmm.. Not sure how well D&D style would work for this. The large army groups would be a pain.

D&D is designed more for a party composed of complementing parts. It's also not very good at emulating the Superhero level variance in stats we have, in my opinion.

One of the Anime D20 systems might kinda work, but I'd still lean more towards something like Exalted where it's assumed that if you invest everything you've got in something, then you are insanely mountain tossingly good at it.