Here are favorites (those marked with an * are not to be missed by us ever):
Magic Kingdom -- Crystal Palace for breakfast*, Plaza Restaurant for lunch or dinner*, Columbia Harbour House and Pinocchio Village Haus (both counter service)
Epcot -- LeCellier*, Biergarten (we usually do this one every year, but we are trying a couple of new places this year), Rose & Crown, Sunshine Seasons (counter service)
Animal Kingdom -- Flame Tree Barbecue* (counter service). We have not done a sit down at AK, but will be doing Yak & Yeti this year
Hollywood Studios -- Mama Melrose*. Unfortunately, we do not like any of their counter services and go to a resort for lunch on those days
Cape May Cafe at the Beach Club (we've done dinner twice--loved it the first time, only so-so the second time; we are trying breakfast this year)
CSR -- Pepper Market (counter service). We eat here often because this is where we always stay
Animal Kingdom Lodge -- Roaring Forks (counter service) was pretty good
We are trying Boma's and Whispering Canyon this year.