Magic Kingdom - Columbia Harbour House - the seating upstairs is a nice break from the park, and the food is really good too w/ fast service.
Epcot - We enjoyed Sunshine Seasons (great variety!), but I'm looking forward to trying the France Counter Service this year.
MGM - We go to Toy Story Pizza Planet for the kids - it's not great, but it's not terrible either.
Animal Kingdom - Flame Tree BBQ!!! The seating by the water is so lovely & relaxing, and the food is so yummy! Flame Tree is our favorite counter service in all of WDW.