Who do you think is the greatest film director? At least for you.
I am going to go with the Coen Brothers here. I know there are artier choices like, well, you know the names. But for pure enjoyment it's the Coen Brothers for me.
My first inclination was to choose Alfred Hitchcock. But his films are pretty similar. Second Claude Chabrol but the language barrier interferes with my complete trust in a choice.
Consider the range of:
Blood Simple, Raising Arizona, Miller's Crossing, Barton Fink, Fargo, The Big Lebowski, Oh, Brother, Where Art Thou, The Man Who Wasn't There, Intolerable Cruelty (yes, I liked it), No Country for Old Men, A Serious Man, and True Grit.
Yes, there were three missteps along the way (Hudsucker, Ladykillers and Burn This for me), but my goodness, look at the versatility above. There are at least three films here that rank among my very favorite movies.
Okay, name names.