I think, because of the third movie, Cinderella really understands that wistful longing for the past romance. Well, since the prince was hypnotized to forget about her and fall for Anastasia instead, it's like how Fantine's love had left after a summer. Or something like that. Just the same kind of emotion they would have I guess.
Plus they both had time being in poverty. I hesitate a bit to say that cause Cinderella wasn't really but still she was pretty much just working as a maid for her family instead of actually living first-class like them.

Anyways, that's my reasoning. They're both very caring too.

or Cinderella.

I'd say Aurora because of how much she dreams about love and romance.