Just my opinion, I like the Contempo Cafe (Contemporary). The hot turkey sandwich is my favorite with Captain Cook's (Polynesian) and the Aloha pork sandwich second. Gasprilla Island Grill (Grand Floridian) would be my third choice.
Contempo would be my choice too. Especially if you're thinking about taking a break out of a day at MK. You can either monorail or walk which is convenient. I know my kids loving watching the monorails glide past them while they eat. And it could be my imagination but it seems to have the most items to choose from on their menus.