Pro Football Hall of Famer John Madden has chosen the San Francisco 49ers' offensive line as the NFL's best for the 2012 season. 2012 49ers Starting QBsLeft tackle Joe Staley, left guard Mike Iupati, center Jonathan Goodwin, right guard Alex Boone and right tackle Anthony Davis can take pride in the honor. So can the 49ers' tight ends and backup guards Leonard Davis and Daniel Kilgore, who have also helped out.Football is a team sport, but individuals often command much of the attention.