Sharpie sponsors those stations— so permanent they are.
I think with little kids, spend a lot of tme in fantasyland, the train, Tom Sawyer’s Island, the rest of the Mk except the big mountains. See characters, and in Epcot, ride the big ball, the Land ride, see the movies in the countries. In HS, Stunt show if it will hold their attention for an hour, I have taken my little kids on all of it.
In AK, Everything except maybe Dinosaur and EE. They will love the animals, even if you do not spend a long time at each site…