Red Bull makes me sleepy (as does most high-sugar foodstuffs.)
Monster tastes like liquid monster. Pass.
Rockstar looks like it's market is the Ed Hardy-wearing crowd. That alone makes it not for me. Pass.
Bawls has an interesting bottle, very French-tickler-like. The drink is so-so. Pass.
Go Fast! is billed as "The Athlete's Energy Drink". I'm no athlete. Also, it's endorsed by O.C.C., who I think hang with the Ed Hardy-wearing crowd. Pass (though, to be fair, this is the only one on the list I haven't tried.)
Neptunus Hirt said:
The best drink isn't on there.
It's coffee.
I'm with you here. Hot or cold. Black or mixed with milk & sugar (I like Japanese canned coffees for the occasional sweet-switch from my usual 6-shot Grande Americano.) For my money and taste buds, nothing beats coffee.