Kind of hate to give this secrect away.... but I'll do it:
the BEST counter service is at Columbia Harbor House. The food is good, not your usual burgers and chicken, but the best part is the upstairs dining room. This secret was given to my husband and I when we went on our "Keys to the Kingdom Tour." At Coulumbia Harbor House there is a downstairs dining room that fills up regularly, but if you order your food and take it upstairs, you'll often find that it's nearly EMPTY up there. The upstairs dining room is just as big as downstairs and no one seems to know it's there. There are some interesting views of Liberty Square and Fantasyland from the windows. I've even watched (i admit it wasn't the best view) the parade from the windows here while I ate a late lunch.
Don't sit downstairs!! It's so crowded. Look for the stairs and head up after you get your food! (Also- the fish & chips here are as good as they are in the UK at EPCOT!)