The problem with coffee is that I absolutely despise the taste of coffee. The only way I can drink it is **** like mochas or starbucks mocha frappuccinos, at which point it's worse than the energy drinks.

Diet energy drinks I sometimes actually consume, since most of them don't have Aspartame unlike awful Diet Sodas. Aspartame tastes nasty and has made me sick for longer than I've known it was 'bad' for you. My body just does not like it. I usually get non-diet, though, because screw it.
I don't drink them much anyway, anymore. 1-2 times a month now when I go to San Francisco to see my aunt to wake me up in the morning and keep me conscious long enough to get home. When I was working at a call center, though, it was like one or two a day.
Red Bull is nasty. Any of those local aren't-we-cool things with Stevia are nasty, Stevia is absolutely vile.
My preferred poison has always been NOS, although I wish they hadn't reduced the caffeine.

Also annoying are those crappy Cherry and Citrus flavors that have made the GOOD flavors grape and fruit punch hard to find - Apparently Fruit Punch only comes in the hard-to-find 22oz bottles now, and grape only in the cans, but nobody around me stocks either. -_- I usually get the regular.
Others I get since a lot of places near me don't even have original NOS:
Monster Ultra
Rockstar Punched
Rockstar Recovery
Don't like Red Bull.