Billy Wilder
Notable Scripts: Double Indemnity (1944), Sunset Boulevard (1950), Some Like It Hot (1959), The Apartment (1960).
After voting, you may discuss the poll here.
Notable Scripts: Fargo (1996), The Big Lebowski (1998), No Country for Old Men (2007), True Grit (2010).
Notable Scripts: Citizen Ruth (1996), Election (1999), About Schmidt (2002), Sideways (2004).