Okay, I have only been to WDW twice, and only to three parks and two resorts, so I am not an expert.
My favorite experience so far was Akershaus, the Princess Storybook Lunch. Followed by Crystal Palace for lunch.
I also like the food court at Pop Century. The cafe in tomorrowland was good, but the one in futureworld @ Epcot was yucky.
I was going to ask this same question...