We just got off the Magic and I know Hercules was a favorite for us and, from the applause, the audience's too. Quite simply, the actor playing Hades and the actresses playing his two side kicks were hilarious. Not often that the villian gets the louder applause, but they did make the show. Based on other comments above, I could see where it might have been less entertaining if the actors/actresses didn't enhance their roles.
The Disney Dreams and Golden Mickeys were typical Disney shows (if you like the shows at the parks, you'll like these). In both cases, the shows revisit the Disney classics of Tarzan, Beauty and the Beast, Cinderella, Finding Nemo, etc., usually featuring a great choreographed musical number from each. I certainly feel they were worth seeing, and they provided 3 shows a day to do so (2pm Matinee, 6:30 and 8:30).
The Variety shows can vary. We had two comedians, a juggler and a magician. They were all very entertaining, especially the juggler when he demonstrated how he can do 3 paddleballs at the same time.