Favorite of the Favorites is Tangerine Cafe in Epcot.
At MK, favorite is Columbia Harbour House, followed by Main Street Bakery (yes they have sandwiches) if they're not too busy.
Favorite at AK is Pizzafari for their hot deli sandwich.
At DHS-no favorite because they're all about the same. But I see that Min and Bill's Dockside Diner is now serving hot dogs and I don't remember that before, so I might try there. No place has been too great there.