Power doesn't equate to importance. And having a keyblade doesn't automatically make you ultimate badass either. Sora and Roxas were both pretty weak when they started off. Aqua, Terra and Ven all had training before their story started. Riku spent kh1 all hoped up on darkness and didn't actually get his own keyblade til later. Eraques and Xehanort are both old and experienced. They have a special function in the world but they're still only as good as the wielder. 

Sooo, she'd disagree on that point. In an RP its more about how the players play. You can bend that kinda thing and its not all about straight power anyway. A character can have its importance without being as strong as another too. Which is the point she meant to make at first but then started rambling...