Answer:

PEPSI

AnswerCrossword Clue
PEPSI"Twice as much for a nickel, too" drink
PEPSICoke rival
PEPSIRoyal Crown rival
PEPSIPick among pops
PEPSICola choice
PEPSIRC rival
PEPSIOne kind of pop
PEPSIBig name in pop
PEPSITropicana parent company
PEPSIBeverage name trademarked in 1903
PEPSIBeverage originally called "Brad's Drink"
PEPSICoke alternative
PEPSIIt may be vanilla-flavored
PEPSIDrink with a "generation"
PEPSI.. Center: Denver arena
PEPSIFountain choice
PEPSIMaker of Twist and One soft drinks
PEPSIKFC acquirer in 1986
PEPSICola wars contender
PEPSIPop icon?
PEPSITwist maker
PEPSISoft drink with a "generation"
PEPSI"For those who think young" soft drink
PEPSIMountain Dew producer, informally
PEPSISoft drink choice
PEPSIPopular pop
PEPSISoda choice
PEPSIVending machine buy
PEPSIProduct hawked by Britney Spears
PEPSICoke competitor
PEPSISoda originally named "Brad's Drink"
PEPSISoda selection
PEPSI"No Coke, ...." (line from a famous SNL skit)
PEPSIPop purchase
PEPSISoda machine option
PEPSIRC Cola alternative
PEPSIBrand once promoted by Michael Jackson
PEPSISoft drink since 1898
PEPSIDrink with MAX and NEXT varieties
PEPSIPart of a classic taste test