When Tiana places him on her head, the sorting hat can see great determination in her, that she'll work as hard as she can to achieve her dreams. She doesn't have to wear him for long before he declares her Hufflepuff.
Charlotte, Tiana's friend, comes shortly after. She repeats Hufflepuff to herself, wanting to be with her best friend, and it is that loyalty that makes it an easy decision.
Ariel is a bit more difficult. She certainly has enough bravery to be a Griffindor, but he finds in her head an overwhelming curiosity, a fascination for Muggle devices, and a longing to know more about the world. He puts her in Ravenclaw, which is sure to help her in her pursuits.
Eric is easy. He's a strong soul, a dreamer, with the seed of a romantic in him, ready to bloom as he grows. Gryffindor.
Naveen comes from pureblood high class and money, which often leads to the cutthroat pursuit of more, a drive and passion that is known as being Slytherin. He, however, is not overly ambitious, and wants to coast through life with ease and fun. There's no one house he truly belongs to, but Hufflepuff, a place of loyalty and hard workers, will maybe help him find more.
Rapunzel, Gryffindor, has only known of the Wizarding World for a short time now, kept in ignorance by her mother. She has embraced it whole-heartedly, jumping in to her new life bravely, with very little looking back.
Gryffindor also claims both Aladdin and Jasmine, who come from very different paths of life, but still possess the same daring.
Flynn, a half-blood orphan, is filled with many dreams. He wants adventure, and enough money to buy it if he cannot find it himself. His wit is quick, and his hands more-so - proven by the missing wallets of those who come too close. There is a great determination within him, and despite a little recklessness he also has a knack for self-preservation. Slytherin suits him best, now.
Mulan will stand up and sacrifice for what she believes in. She will fight, however hard it is, to do the right thing and protect what she loves. A true Gryffindor.
Belle, muggleborn and teased for her oddness, wants more than what she had in life. That ambition could lead her into Slytherin, but she is also filled with the passion for reading and a love of knowledge, perfectly suited for Ravenclaw.
He's passed to so many children every year, and sees into their head who they are and what they value. Knowledge and learning for Jane and Milo, loyalty and patience for Quasimodo and Cinderella, cunning for Megara and ambition for Shang, bravery and courage for Tarzan and Hercules. He knows them all, can feel into even their most quiet, secretive places, and hopes that his choices will lead them well into life.