The eyes of the boxing world will be on Las Vegas for tomorrow's blockbuster Floyd Mayweather Jr. vs. Manny Pacquiao fight, but they will also be on the history books, as two contenders for the "greatest pound-for-pound fighter ever" accolade square off. We're the first to admit we're probably not qualified to settle that particular debate, but we do have strong opinions about which dudes rank as the most stylish.