Also depends on her height and willingness to ride the bigger rides...My daughter will be just under 4 when we return in September and should be right above 40" at that point so we are booking a mix of the busier rides(SDMT, Splash, BTMRR, ToT, TSMM, TT and Soarin) as well as the meet and greets. Have you been to any local amusement parks to see how she reacts to some of the more advanced rides?