I have also really enjoyed films directed by Guillermo del Toro. Both Hellboy films were surprisingly good and Pan's Labyrinth was unique and amazing.
I am also a huge Stanley Kubrick fan. The Shining is one of my favorite movies of all time! The visions for his movies are unlike that of any other director, at least in my opinion. Lolita, Spartacus, and 2001: A Space Odyssey are all classics that have stood the test of time.
So, those are a few of my favorite directors. Who are your favorites?