The meet & greet for Minnie, Mickey and Goofy in Epcot has Disney cartoons playing on TVs. Good way to pass the time waiting in line.
At MK, Dumbo is nice because you can take a break inside with air conditioning while the kids play.
And, the day we waited in line to see Pooh, Tigger and Rabbit at MK wasn't bad even though it was a 45 minute wait, because the CMs in costume did a great job interacting with the guests in line. It was entertaining just to watch them.
IMHO, Disney needs to look at ways to add TVs playing cartoons or other entertainment to the queue area. It definitely makes the time waiting in line pass much quicker.