But I don't agree. The truth is, the three blonde Gaston-groupies are easily as pretty as Belle. Prettier by some standards - they dress better, they have bigger boobies, and their hair is blonde, a colour universally prized for its appeal.
But Belle is more beautiful. Why? Because she is her own person. Yes, she has a lovely face and a nice figure, but doesn't exactly flaunt it with her brown ponytail and modest dress. She stands out from the crowd because she is wholly herself, unconcerned with trying to fit in or appear normal, and she cares deeply only about the things and the people that she loves.
Gaston is obsessed with Belle's beauty. His unwanted advances stem directly from his physical desire for her, but she is not flattered one bit. Sure he's the hottest guy in town. And he thinks she's gorgeous. Set any girl's heart aflutter, right? But no: Belle genuinely doesn't care what anyone thinks of her looks.
The Beast never once tells her she's beautiful. He is intimidated by her beauty by comparison with his own grizzled appearance, but his love for her has nothing to do with it. He falls for her slowly, over time, as he learns about her and from her.
Some might say it's still problematic because as soon as the Beast learns to appreciate inner beauty, he is rewarded by becoming physically beautiful himself.
But I think most of us already know the rebuttal to that one.