This is a more specific version of the overdone which sports is the most athletic topic. We always had the which sports has best athletes discussions, but I feel like even within the specific sports had large variance of the certain type of athletes playing certain positions. So what position in a certain sports would produce athletes that would likely be rather successful in other athletic endeavors. My pick would be the Guards in the NBA. A certain size/strength/coordination/endurance combination would be required to be able to play as an NBA guard and I think those attributes would transfer well to other sports.