The bartenders at the lounge at the Boardwalk make a great dirty martini. All of the frou frou tropical drinks at the lounge outside 'Ohana are good. Don't know if they still serve a real backscratcher as a garnish in the drink with the same name, but they used to. Also, they no longer regularly serve drinks in the hollowed-out coconut shell head, but they'll accommodate you if you ask for one. Personally, if I'm going to drink something that ostentatiously fruity and colorful, I want it in a coconut shell head.
On a hot day in EPCOT, the Tachibana cocktail in Japan goes down nicely (rum and mandarin flavors), although if I'm on a World Beer Tour it tends to interfere with my objective.

Speaking of World Beer Tours, my favorite beverage bar none on that odyssey is the Ringnes beer in Norway, which is singularly dry and refreshing. That is closely followed by my second-favorite, a Guinness/Bass black 'n Tan at the Rose & Crown.
You can find bad drinks just about anywhere, so it's tough to really remember any of them specifically. All I can say is that the least enjoyable part of the World Beer Tour is the molasses-sweet beer I had last time at the African pavilion. I think it was either Kenyan or South African. Regardless, it would have been better on pancakes than in a mug.
