1. Fountain Coke from almost any authentic Mexican restaurant
  2. McDonalds fountain Coke
  3. Mexican glass bottle Coke
  4. American glass bottle Coke
  5. 8 oz plastic bottle Coke
    20 oz plastic bottle is too much. The last few ounces are always warm backwash and you feel like death if you drink that much.
  6. Aluminum can Coke
    If poured over a glass of ice this moves up to #5
  7. 2L of Coke
    Goes flat way too quickly
  8. Not a feasible substitute: Pepsi
  9. Sidenote: anything other than original Coke is not worth drinking. i.e. Diet, cherry, vanilla, zero. Don't mess with perfection.