Title covers it. Not brand bashing, just curious about the flavors.
For me, the 3rd worst is, by a wide margin, the "Cohiba" I'm suffering through, now.
Second worst was a bad batch of what was supposed to be Banana Nutbread,
Blueberry Cinnamon Crumble, and it etched a poly tank. I would have lifted a cat's tail and licked to get the taste out of my mouth. Fortunately, there were no cats handy at the time. I did squeeze the toothpaste tube directly into my mouth, though. It reminded me of Pet Detective.