No Budget: Aside from the fact Imagineering built a whole theater for it, the Disney World version seems cheaper to perform than the others. It relies much more heavily on projections, and its dragon and boats look less elaborate than those at Disneyland. The projections aren't even HD.
Maleficent enters while threatening, "Now, you will deal with me, and all the powers of my imagination!" This quote sounds very similar to what she told Prince Philip right before turning into a dragon: "Now, shall you deal with me, O Prince, and all the powers of Hell!"
Uncancelled: The Disneyland version became so popular, Disney decided to indefinitely extend its originally five-year run. Nineteen years later, its still kicking and none of the shows look like they're going anywhere anytime soon.