Is the available character list up to date? And are you only including characters that have already been in the show, or any character from a Disney or famous fairytale?
EDIT: I see that Ariel is already taken, but is Belle? Or Merida? I think my choices in order of preference would be...
1. Ariel (just have to give her the honor, as she's my favorite. But I know she's taken, and the others would be just as good.)
4. Snow White