Hmm, i feel like i'm copying but yes, Quentin Tarantino is always my personal favorite.
And also said, Romero's work is still untouched to this day, also Peter Jackson, but I still want to see one more epic from him to make him solid on here [heh heh just getting greedy].

Oh and Paul Anderson,James Cameron, Spielberg and Seth Rogen[makes me piss ] deserve very honorable mentions.