Although I have always seen Tim Duncan as a center (if it looks like a center, plays like a center, etc.), Timmy has always been listed a power forward. And if that is the case, he can only be the greatest power forward to have played the game.
Two-time regular season MVP, Duncan has won four NBA Championships, three of which he was named the Finals MVP. Duncan won Rookie of the Year in 1998, was named to 11 All-Star games, made 12 All-NBA teams, and 12 All-Defensive teams.
And to think, if it wasn't for Hurricane Hugo destroying the Virgin Island's only Olympic size swimming pool, Timmy may have stuck to swimming instead of becoming one of the NBA's greatest of all time.