KEVIN FEDERLINE has topped a new U.S. magazine poll to find the most devoted dad from a list of former 'cads'. Federline beat Russell Crowe and Ben Affleck in the In Touch Weekly countdown, which also features Michael Douglas, Ashton Kutcher, Colin Farrell and Lindsay Lohan's father Michael. In naming Britney Spears' ex number one on the new list, In Touch reports, "In light of Britney's current substance abuse problems, Kevin, 29, has stepped up to care for their kids, Sean Preston, two, and Jayden, 13 months. "The boys live at his L.A. home where he had a fence built around the pool for their safety.