In general, we prefer not to go to buffets. The food, while generally better than Golden Corral, just doesn't wow us that much. But, that said, if we have to rate buffets, Crystal Palace would be our favorite for dinner; Boma for breakfast. Cape May dinner is good, as is Tusker House dinner. We also liked most of the food at 1900 Park Fare. Chef Mickey's breakfast was good, but limited variety (great characters, though, if you're in seach of the character experiences.)
We really did NOT like Boma dinner...though we are very adventurous eaters, we found Boma dinner to be either over-the-top oddities on seasoning or totally bland. No such thing as subtle, there.
Hollywood & Vine was just OK for dinner, and we had terrible service & blah food for breakfast just this past May...would not go back.