I didn't like Mission to Mars, Dreamflight, and Diamond Horseshoe Jamboree, but they're gone now.
I really don't care for the Living Seas, Tom Sawyer Island, or Timekeeper.
I haven't liked all the "The Making Of..." attractions at the Studios, especially when they were not-so-interesting shows for a movie that wasn't very good.
When I'm not with my niece and nephew (no kids of my own yet), I stay away from Toontown!
I like (but not love) Universe of Energy- I remember how horrible it was before they re-did it with Ellen and Bill Nye the Science Guy. That was horrible!
Never even bothered to try Tarzan Rocks from what I read about it on the DIS.