I disagree. Thanks to the World Showcase, Epcot has an amazing selection of food and different atmosphere to complement it. However, when it comes to original theming, DHS takes the perverbial cake. If you exclude fast food joints (with the excepting of different themes) they're all practically the same park to park. Prime Time, Sci Fi, and Brown Derby have always been my top choices at Disney World. Yes, the food varies a bit place to place, but the experience of each one is hard to match.
In my humble opinion, MK and AK lack memorable dinning experiences (Sorry Sunny Eclipse, I do love you). However I should admit I have not been since the new Fantasyland opened.