Hi Teresa!
How exciting that you are planning your upcoming visit to Walt Disney World! Your family will love all of the Walt Disney World parks, as they are great ages to enjoy all that Disney has to offer! But, I'll provide my top recommendations based on their interests.
If your daughter loves princesses, she will love Magic Kingdom. Magic Kingdom has wonderful attractions, as well as meet and greet opportunities for many of the Disney princesses. She can meet
Cinderella and Rapunzel at Princess Fairytale Hall. At Magic Kingdom she can also meet
Anna and Elsa. She can also dine with Cinderella at Cinderella's Royal Table and meet many of Cinderella's favorite princess friends. You can book your Advance Dining Reservation (ADR) 180 days in advance.
If your kids love attractions, definitely visit Hollywood Studios. Disney's Hollywood Studios is home to Rock 'n' Roller Coaster, Tower of Terror and Toy Story Mania. Your daughter can also see Belle perform in a special Beauty and the Beast show and she can see Ariel at the Voyage of Little Mermaid show.
Epcot also has many opportunities to meet princesses throughout the World Showcase, including Snow White in Germany, Belle in France and Mulan in China. There are also tons of great attractions for all ages, including Soarin', Test Track and Spaceship Earth.
Animal Kingdom offers an opportunity to meet Pocahontas and has some great attractions, including the Kilimanjaro Safari and Expedition Everest.
I hope this helps you plan your trip!
Magically,
Stacy