My kids are the same age as yours! My son (3) loved Buzz Lightyear ride, Pirates of the Carribean, the Norway ride at Epcot, Test Track and Peter Pans Flight. My daughter wore her princess dress on the day of our character meal (highly recommend you do this-most of the CMs will call her "Princess" and bow to her--and the characters react even better.) Lots of little girls walking around wearing princess dresses. We found a place where she can meet most of the princesses without going to a character meal: in Toontown, inside the store "Toontown Hall of Fame". There are 3 different lines to choose from: Princesses, Mickey Mouse and I can't remember what the 3rd line is. She also liked the kidcot stations inside Epcot (both kids liked this). She loved all the rides.