I like Red Bull but it gives me the palpitations, maybe I am allergic to it. Another of my preference would be Gatorade.
I tried something called NOS, I think? At the Milwaukee Mile this weekend. Tasted like grapefruit juice.
Full Throttle Blue Demon, Amp Overdrive, NOZ, Jolt, two energy drink mix packets, Sprite, and Monster - mix all that together and you'll have one mean mixture Tastes really good and will keep you up too