My vote is for Wolfgang Puck's Express in Downtown Disney. The restaurant in my opinion is a combination Counter Service and Sit down. You order at a counter and they then bring the food to you and it is served on regular dishes with real silverware and not paper/plastic.
They have a nice variety of gourmet pizzas, pastas, salads, sandwiches and for kids they have chiecken fingers, mac n' cheese, and pizza.
I think this one of the best value counter services and the food is much better than you would find in the parks.