Poll: America's National Director

According to Wikipedia, a national poet "is a poet held by tradition and popular acclaim to represent the identity, beliefs and principles of a particular national culture [and writes] poetry that closely identifies with the nation's cause – or is thought to do so." Which director most deserves to be called the cinematic equivalent of a national poet for the United States? (Don't necessarily vote for your favorite director or the one you think is the most talented) Discuss here