Hey Carrie!
Thank you for bringing your question to the Disney Parks Mom Panel. Walt Disney World is a perfect place to spend a day with your family.
While both Epcot and Magic Kingdom offer great choices for all of your kids, I would recommend the Magic Kingdom. The Magic Kingdom offers a myriad of attractions and entertainment for kids big and small. It is also home to several princess attraction for your four princesses.
For the big kids, there are several thrill rides such as Space Mountain, Big Thunder Mountain and Splash Mountain. For the little kids there are ride such as the Mad Tea Party, It's a Small World, Under The Sea and Dumbo the Flying Elephant. The best part of the Magic Kingdom is most rides appeal to all ages. There are also entertainment options for everyone such as Wishes Nighttime Spectacular and the new Festival of Fantasy Parade, debuting this spring.
For a full list of attractions at the Magic Kingdom check out the
Attractions site which allows you to filter the rides depending on age, height and appetite for thrill.
I hope this helps you plan your practically perfect day in Walt Disney World. If you have any more questions please come back and see me.
Have a pixie-dusted day!
Sue N., IN