I have been to all of them. By far, the Brown Derby is the best. It is expensive and more time consuming because it is a signature. It is one of my favorite places on property.
It's been a while since I was at Mama Melrose's. I liked it fine, but it's been years since I have been there. I think it's a little out of the way, but the park is so small, we really don't mind the walk.
I also like Hollywood & Vine, although a lot of people hate it. It's a typical Disney buffet and it's located towards the front of the park. It's nothing to write home about, but I wouldn't hesitate to go back, particularly if I was doing the Fantasmic package and this place had a better time.
I didn't care for the SciFI café. I thought the seating was a little awkward and the food wasn't that great. Some people love it, but I didn't like sitting in the dark looking at the backs of half the table.
I loved 50s. I thought the food was pretty good and the atmosphere was really fun. I understand it depends on your waiter, but we lucked into a pretty good one.
The Boardwalk also has a lot of things you could try if none of this suits you. ESPN is exactly what you expect. We really enjoyed Beaches and Cream, too. The ice cream is really good. We have tried Yachtsman and it too was good. I think if I were to pay for Yachtsman, I might as well stay at the Derby and save the transpo time. I liked Kouzzina as well, but I understand that is closing.