History is full of epic rivalries: boxers vs. briefs, the Whopper vs. the Big Mac, Yankees vs. Red Sox, Paris vs. Nicole. But foremost of all these storied conflicts, the Great Cola Wars -- the long-standing Coke vs. Pepsi showdown -- still has the power to divide even the closest of friends.

Despite our differences in soda pop preferences -- Dayana carries the banner of Diet Pepsi, while Alyce defends Diet Coke to the death -- we do agree that PepsiCo (NYSE: PEP) is the brand best suited for investors' portfolios.

Introducing New Pepsi!
No, Pepsi isn't replacing its flagship formula, a la "New Coke." But this consumer giant has adopted a new and refreshing approach to everything it does, from top management down to the business of environmentally friendlier resource management.

Leading the charge is an extremely high-powered female CEO, who's driving the business in unconventional and highly effective ways.

Coca-Cola is a Motley Fool Inside Value recommendation. Coca-Cola and PepsiCo are Motley Fool Income Investor recommendations. Motley Fool Options has recommended a diagonal call position on PepsiCo. The Fool owns shares of Coca-Cola. Try any of our Foolish newsletter services free for 30 days.

Alyce Lomaxand Dayana Yochim do not own shares of any of the companies mentioned. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Fool has a disclosure policy.