
The England manager, Newsnight presenter and presidential hopeful are three of 10 names cited by lifestyle magazine Esquire.
Batman star Christian Bale and Prince Michael of Kent are also in the top 10.
Esquire fashion director Catherine Hayward said: "Powerful men know how to dress themselves and often stick to a uniform.Each of the men in our list has given a teasing twist to traditional tailoring and made the look entirely their own."
The Best-Dressed Power Men of 2008
Tobias Meyer - Sotheby's auctioneer
Lapo Elkann - Italian industrialist
Lupe Fiasco - Chicago rapper
Fabio Capello - England manager
Stuart Rose - M&S boss
Jeremy Paxman - Journalist
Barack Obama - Presidential hopeful
Christian Bale - Batman star
Prince Michael of Kent - Royal
David Mayer de Rothschild - Environmentalist.