Well for QS it's a toss up between Columbia Harbor House, and Cosmic Rays.
CHH has fish, which I like, plus it has the upstairs quiet area, if you need a break from the barely organized chaos of the MK.
Cosmic Rays has some of the best selection for a QS. While I typically get the Bacon Double, I like having so many options. Sonny's routine never changes, but it's fun. This place is usually a madhouse, and almost always full, so "caveat emptor".
For TS, we enjoy Liberty Tree Tavern. The dinner character meal buffet was a good feed, and had the characters in colonial outfits. Sadly, it is no longer a character meal, but the food is still good.
Our kids are a little older for it, but the crystal palace buffet is good too.