Quick Study: Coke Still No. 1 Brand, But Tech Giants Loom Large; CEOs Say Digital Drives Revenue, with Mobile Out Front

â–¶ Just Like in 2011, Last Year, Coke is It: Coca-Cola remains the wor ld’s most valuable brand, but it is facing an increasingly strong challenge from Apple, with other technology brands breathing down its neck, contends a study by Interbrand.