By the way, you can check out the menus for the sit-down restaurants right on Disney's site. For example, here's the Coral Reef one.
https://disneyworld.disney.go.com/di.../menus/dinner/
Of all the places I mentioned, Biergarten is probably the one I always have to do. The rest are every now-and-then places.
By the way, if you're elsewhere in the parks, the Tusker House buffet and the Yak & Yeti (both in Animal Kingdom) are excellent.