I have a question about the mint juleps since I've only been to DLR twice and they were years ago - I thought they didn't serve alcohol anywhere in DL other than Club 33? Is this some sort of virgin mint julep? A mint julep is pretty much just bourbon, water, sugar, and muddled mint leaves and they are delicious

Maybe if they substitute seltzer water or sprite for the bourbon it would just taste like fizzy mint? Don't know.
Anyway my least fave food...hmm I'd have to go with Tony's Town Square in MK in WDW. The water tasted like it was fresh out of a chlorinated pool, the sauce tasted fresh out of a can from someone's fallout shelter, and the pork loin I got was dry and tasted far too heavily of the cheap white wine they used in the gravy. And it was expensive for what we got; then again I felt like me paying period was too much for what we got. The only redeeming thing I can recall was the bread.
I also really dislike the dish that was simply labeled "Traditional African Breakfast Fare" at Boma's breakfast. Everything else was amazing but this reminded me of like tapioca by itself. Gross consistency and odd flavor.
I'll catch flak for this hardcore too, but I have to say that the Teppanyaki grill in Epcot is essentially an overpriced and lackluster version of the majority of the cheaper Japanese steakhouses dotting the Kissimmee/Orlando area. Sorry!