This one was kinda hard, considering in my opinion they are both equal, but when Melody climbed that big ice tower to get the trident i was impressed with her, so im gonna say when she gets the courage she can be a good fighter, but idk if thats enough..

Dude totally Melody

Both are heroicly bada** and are really awesome because they're the only young heroines who actually defeated their villians. However I had to go with Melody because Jane only saved Peter Pan and the lost boys while Melody saved her friends, family, and the seven seas.