Pepsi Blue -- Ewww! Very much an acquired taste.
Pepsi Twist -- Not bad.
Mountain Dew Code Red -- Good
Upside Down 7-up (or whatever the f*ck it's supposed to be called) -- OK, but don't f*ck up a good thing.
Dr. Pepper Red Fusion -- Not bad.
Vanilla Coke -- BRAAAAAAAALLLPH! Especially when it's warm.
Cherry Coke -- Good.
Big Red -- Texas tradition. Faygo Redpop is a little sweeter, but that's if ya live up in Detroit!

Jolt Cola -- Nastiest tasting sh*t I've ever tasted, plus all that caffeine gave me a headache.
Pibb Xtra - Not much difference, if any, from regular Pibb. Doesn't hold a candle to Dr. Pepper.