Goofy's Kitchen is the buffet with the widest variety of food, no question. And Goofy's is almost a slam-dunk for me every time I go there. I think I have only had food that was not up to par maybe 2 times since 1992. Otherwise, it is always great, and I am happy with the character selection. There are usually 5 main characters there and then a rotating cast of guest stars which include Princesses and others. Last time I was at GK, I believe there were 8 characters running around in the restaurant (a couple were on the other side). Other folks have not been happy with the character selection when they were there, but more often than not, GK is a hit with people.
As Jack said, you will find differing opinions on all the restaurants,
especially the character meals.
I have done Storytellers Cafe Critter Breakast a few times (that is a much smaller buffet as well as a la carte ordering) and it just lacks something for me. I have tried the buffet and the menu offerings. It's just blah for me. Many people LOVE the Critter Breakfast because it is quiet and not as high energy as Goofy's or (what used to be) Lilo & Stitch.
Now, of course, the Lilo & Stitch breakfast has become the Surf's Up with Mickey meal, and it is all buffet (with some specialty items), and people seem to like it. Its the only meal with Mickey. I had a chance to try the Mickey meal in December....and I went back to Goofy's instead!!! If it ain't broke....
There are also plenty of Minnie & Friends fans (that's served buffeteria-style but is considered a buffet), and everyone agrees this meal has the most characters of all the character meals, but there have been mixed reviews of the food.
Otherwise, I like Carnation Cafe, Blue Ribbon Bakery, River Belle Terrace and Bengal BBQ in DL.
I like Wine Country Trattoria and Taste Pilots Grill in DCA.
I like Storytellers as a regular, non-character restaurant for lunch or dinner.
I like Naples, ESPN Zone and Rainforest Cafe in DTD.