In the consumer goods space, few rivalries are as iconic or enduring as the one between The Coca-Cola Company (KO) and PepsiCo Inc. (PEP) . These two titans have been battling it out for more than a century, not just on supermarket shelves but across airwaves, billboards and now digital screens. While the rivalry was once defined by the cola commercials and the taste tests, the modern battlefield is far more complex — a competition spanning global market share, diversified portfolios, strategic agility and ...