Wolf Guy - Ookami no Monshou
the hero both has the brains and brawn mostly because he is a werewolf
he is really not a monster like the villain. he hates violent confrontations but he is willing to fight if it means saving the lives he cares about the most
http://myanimelist.net/character/25268/Akira_Inugami
the villain is a physically gifted and fucking insane.doesn't give a shit about anyone he kills. he may not be as strong as the hero but he has the tools to be just as dangerous
http://myanimelist.net/character/28019/Dou_Haguro