Peach

BUT PEACH IS A DAMSEL RAAAWWWR We can hear you angrily yelling now. But seriously, calm down. The princess of the Mushroom Kingdom has proved to be just as capable a heroine as Mario and (to a much lesser extent) Luigi are heroes. Check out Super Princess Peach on DS if you havent yet. And sorry for the dig, Luigi, but we call em like we seem em.