Let's bring back this conversation.
I've only been to Disneyland once, but I have tons of favorite restaurants at Disney World!
In the Parks: For sit-down, Be Our Guest, Akershus, Coral Reef Restaurant, Crystal Palace, and Tony's Town Square. And for quick service Pizza Planet and Cosmic Ray's
At hotels: O'hana, Chef Mickey's, Boma, and 1900 Park Fare
Downtown Disney: Rainforest Cafe
Snacks: Mickey Ice Cream Bars (on the stick), Dole Whip, and Sprinkles Cupcakes!