Belle by a long shot. She prioritized her family, she reads, is polite and well mannered, is kind to everyone (she isn't even really mean to Geston, though obviously annoyed by him).
I also like that she didn't fall in love with a prince, really. She didn't fall in love with wealth, power, title, looks, prestige, etc. she fell in love with an ugly beast in a run down castle that others were terrified of. She wasn't a princess because of her father or because she "won the heart" of some man who everybody wanted. She became a princess because she wanted to protect her father, and she looked beyond everything that is superficial. She earned it....