I like Code Red Mountain Dew.
I drank 4 liters of that stuff one day, after attending a chocolate sampling event. I was so wired I stayed up for 2 days. That does not deter the fact that it is damn good :).
I drink the diet Code Red. LOVE LOVE love the stuff. Regular Mt. Dew is just too sweet, and I wish they still packaged the diet in 2-litres. I hate buying it by the 12-can pack, especially with our bottle return laws. Taking back empty 2-litres is easier.