lucio fulci for sure, all of his movies have outsanding use of gore and special effects, plus his zombies look so friggin awesome. i also like ruggero deodato, cannibal holocaust is my favorite italian horror movie of all time, but i dont like house by the edge of the park too much, so i cant say he's my favorite.... also dario argento is good, but his movies tend to be a bit too artsy and neelessly strange for my tastes, but out of all of the directors listed, he is probably the most skilled, his imagery is so beautiful in his movies, even when he shows death, it is a beautiful thing in his movies.