San Angels and Chefs de France are my two favorites. The food was good and the atmosphere wonderful for both! Le Cellier was OK but neither DH nor I thought our meals were great (we had high expectations because of the pretty spectacular reviews on DIS!), and it doesn't have the charm of San Angel Inn or Chefs de France.
DH and I like to eat outside at the Rose and Crown, but the food is also just OK.
Marrakesh--gorgeous restaurant, fun belly dancer & live music, but DULL food (no spices!).
Those are the only table service restaurants we've tried at Epcot--I'd like to try Coral Reef and Alfredos but have been scared off by reviews. On the other hand, San Angel Inn gets awful reviews, and we were very pleased with the food.