Since there is no agency or organization dedicated to records of ice cream flavor sales, it is impossible to say with complete accuracy, however Blue Bunny and Dreyers both report Vanilla as the best selling flavor, followed by chocolate.
in 1927 koolaid was invented in hastings nebraska by Edwin E. Perkins. The seven original koolaid flavors were: Cherry, Lemon-Lime, Grape, Orange, Root Beer, Strawberry, and Raspberry. 17 gallons of Koolaid are consumed every second during summer. The original spelling of Koolaid was Kool-Ade