This is our first trip to Disney World. We are travelling with 2 kids...5 year old girl and 18 month old son. We are planning on going to two parks only. For sure, we're going to MK. My question is which of the other 3 parks would you choose if you had a 5 year old and a 18 month old?

They also like MGM better than AK, great shows especially for princess lovers (Beauty and the Beast, Little Mermaid) DS loved Playhouse disney.
for very little rain.
My kids 7 and 5 at the time loved MGM! They liked the shows and the honey I shrunk the kids movie set. They really enjoyed the parade there as well. AK was good too, but we would recommend MGM.