It’s a nostalgia thing. Last time we did IASW on the way to BOG on Christmas Eve. But the first FP I go for at MK is always Peter Pan. and Dumbo is a must too.
When we first took our boys, the youngest was 5. He loved Dumbo, back in the day when it was outside in the middle of Fantasyland. We rode it about 4 times in a row, queueing each time. He never once complained about the wait. He just loved it.
Funnily enough neither of them remember riding Peter Pan until our last trip! Obviously just my nostalgia.
IASW is just iconic Disney. Nowhere near my list of favourites (HM, JC to mention a couple), but I have to ride it.