Only 11 official? What are they?
Snow White
Cinderella
Alice (of Alice in Wonderland (1951))
Sleeping Beauty
The Little Mermaid
Belle (Beauty and the Beast)
Jasmine (Aladdin)
Pocahontas
Mulan
Tinkerbell (several movies plus several cameos)
Princess [Tiana] - Princess and the Frog
Rapunzel (Tangled)
There are a number of others I have not seen, or only vaguely remember the plot — Aristocats, Lady and the Tramp, 101 Dalmatians.
Esmeralda, from The Hunchback of Notre Dame, is definitely the "hottest".