Ale & Compass at the Yacht Club is my go-to. They have a non-traditional buffet of "sides" -- like fruit, pastries, yogurt etc. that's a pretty good deal (for Disney). Only available on weekends, but brunch at Wine Bar George is outstanding. Haven't tried it yet but have been hearing that breakfast at Rosa Mexicano over in the Dolphin is really good -- churro waffles! - though beware that they don't validate parking at breakfast. It is a character breakfast but I'd eat at Topolino's even if there weren't any characters -- it's that good!