I don't remember any particularly hellish queues at WDW but maybe that's because of the time of year I usually go. I will never, however, forget the line at an attraction at Universal Studios about Murder She Wrote and special effects. After being at this attraction, I could never watch that show again. Basically, we got carted from waiting area to waiting area for well over an hour. There was nothing to do or see while waiting and they played the theme song to the show over and over and over again. By the time I got to the attraction, I didn't pay much attention because I was so frustrated.
Ali