Think it might be worthwhile to narrow it down to a genre.
This is as difficult as post your Best song ever.
Apocalypse Now, or Jacob’s Ladder would be my best War Film.
Blade Runner, or 2001 a Space Odyssey would be my favorite Sci-fi films.
Seven or Silence of the Lambs for Horror/Crime.
28 Days Later for the best Apocalypse film
Spartucus for the best Sand and Sandal Epic.
Best period Drama goes to Barry Lyndon.. This film is like watching a series of Constable and Gainsborough paintings come to life, it is beautiful. Stanley Kubrick was a genius. And whilst I mention him…
Dr. Strangelove (of how i stopped worrying and learned to love the bomb) is the best Black Comedy.