Sergio Leone
Werner Herzog
Stanley Kubrick
Ingmar Bergman
Andrei Tarkovsky
Lindsay Anderson
Sam Peckinpah
David Lean
Alan Clarke
Don’t know who to put for number 10 because it’s difficult to make such a list. I like directors for different reasons and there’s some who I really admire, e.g. David Lynch, but can’t justify putting them because of lack of consistency (at least for my taste). Hitchcock maybe?