MK - The Plaza, used to be LTT for lunch, but since they changed the menu, I prefer the plaza. CRT is great for the experience, but the food is terrible, IMO. I also like Crystal Palace for breakfast.
EP - San Angel Inn because I LOVE Mexican food. Overall experience, probably Les Chefs de France. I really almost feel like Im in Paris!
HS - ?? Brown Derby is really the best, but if you can not think about the millions of calories, 50's PT has good food that is awful for you!
AK - Yak & Yeti..though I havent been to Tuffins yet.
Honestly, the only restaurants that are actually really good are at Epcot and the Deluxe Resorts.