BEN AFFLECK, 39
It was his multitasking turn as actor, screenwriter and director in 2010's The Town that ushered in the new and improved Affleck – complete with a box-office six-pack! "I'm happier than I've ever been," the self-proclaimed "Mr. Mom" told EW. "I'm extremely lucky in my family. I'm married to this incredible woman [Jennifer Garner]."