I've seen most, not all, of the films listed. Of these, it came down to the two Brando films, A Streetcar named Desire and On the Waterfront. Anyone who hasn't seen the young Brando is missing some absolutely amazing acting. In the end, my vote went for On the Waterfront, although it was a closer contest than it might be for most of you. Streetcar shows Brando at his most brutal self.