You're going to get as many different answers as there are restaurants. We love Chefs de France and the Bistro. Why? We LOVE french food...I LOVE french waiters (LOL) and the quality and consistency of our meals there have always been high. We've never had a bad experience...maybe it's just that good or we are lucky! They have a great wine list (all french) so I take the opportunity to try wines that aren't normally available here.
One of our favorite things to do at WS is to eat and drink our way around the world. We have drinks/appetizers in various sit down and counter restaurants. Some of the restaurants like France, Japan and England have places where you can sit and get a drink and appetizers. Sit at thw wine bar at Chefs and have a glass of wine and an appetizer or salad...sit in the loung in Japan and have sushi or tempura...sit in the pub in england and have scotch eggs or whatever! We usually get a beer and brat in Germany, too. This way we are able to take in some of the entertainment and watch Illuminations!
We used to do a full sit down (and still do occasionally) but we found that we just missed too much of the fun! We now do our sit downs for a late lunch...saves money, gives us a break from the heat, AND we don't miss the magic of epcot at night (our favorite time)!