- Cinderella. Her castle's the logo, she has more relevant and recent appearances than most of the other "classic" princesses, and I like her more than SW.
- Ariel. Formerly non-human rep, herald of the renaissance.
- Elsa. I hate her, but on strict popularity she deserves it.
- Sofia the First. I want a rep who originates from somewhere outside the Disney theatrical movies, so why not go with the princess whose entire reason for existing is "let's learn lessons from other Disney princesses"?
HMs: Belle (personal fave, but I think the first 3 are better examples), Mira Nova (if Sofia was about anything other than learning to be a princess, Mira would take her place), Adrien Agreste (didn't want to bother checking eligibility).