Winner: Evan Greenberg
Unlike his father, former AIG Chairman and CEO Hank Greenberg, Evan Greenberg doesn’t attract much press attention, but that doesn’t mean he hasn’t made an impact in the insurance business, particularly in 2015. Evan runs Insurer ACE Ltd, and after its $28.3 billion acquisition of Chubb Corp. in the summer, he now runs one of the world’s biggest property and casualty insurance companies. Hank left AIG in 2005 under pressure from then New York Attorney General Eliot Spitzer on civil charges he continues to fight. Under Evan, ACE had its own Spitzer issues, agreeing to pay a small fine to settle civil charges in 2006. But now nearly 10 years later, Evan still runs the company and sources say he is poised to make it even bigger. Rumor has it that Evan will snap up his dad’s new insurance outfit, Starr Companies, when and if his 90-year-old father ever decides to retire.