MK- We did Stitch once and will never go again. The seats are uncomfortable, and then they strap you down with an over-the-head shoulder harness that clips into the sitting part of the seat. It's pitch black, and Stitch escapes into the chamber. THe shoulder bar pushes down on you so you are supposed to think Stitch is jumping around the theater. Then there are the awful smells. Yes, Stitch is one stinky guy. The younger kids were terrified in the dark- as you are harnessed down you can't lean over to comfort them- and the older kids said it was gross and boring. Adults agreed.
We also don't do Country Bears (too corny but younger kids usually like it), Swiss Family Treehouse (too much stair-climbing for 90 degree heat), AstroOrbiter (great view, even greater puke-potential), the cars you "drive" yourself (too stinky, too hot), and Tom Sawyer Island (time consuming, no interest in wandering around the Florida underbrush).
Epcot- Captain EO is mind-numbing (although we enjoyed the dancing and throw-back concept the first time, ONCE is ENOUGH). We've never done either of the Innoventions areas- not sure why. Mission:Space orange is too intense (DD has ridden it maybe 6 times, disliked it more each time, and now doesn't ride it at all). Circle of Life movie is b-o-r-i-n-g but provides a good nap spot.
Ellen's Universe of Energy is a mixed bag- sometimes boring, sometimes interesting, always a good place to spend 45 minutes sitting down in the a/c.
DHS- Playhouse DIsney (or whatever it is) but that's because of no interest- DD is almost 21! We enjoyed Lights Action Motor stunt show BUT don't go if there's a waiting line because it's brutally hot. We skip the backstage tour now because it's sad and sorry- a real shell of its former self. Haven't done any of the animation courtyard stuff yet, only because we run out of time. I find DHS the hardest park to manage, balancing show times with rides.
AK- Hmmm
we never go to Nemo the Musical. We think it's numb and boring, and it replaced our favorite show ever- Tarzan Rocks!! We often skip the tiger attraction because they are well hiding during the daytime and it's hotter than blazes walking through there. Dinosaur is VERY loud and jarring- DD loves it but I bow out. Watch out for It's Tough to be a Bug. Not only does DD dislike bugs and flying things, but Hopper is a menace- an incredibly LOUD menace, and he's pretty terrifying all on his own.
One of the biggest ways we save time in the Disney parks is to do character meals. You have to eat anyhow, it's nice to sit in the a/c for an hour or so, and your kids will get at least 4 autographs and photos. You can plan about 20-30 minutes in each character line in and around the parks, so right away you can see what a time saver this is. SO I guess you could say we skip most character meet-n-greets!