I decided to tally up all the votes so far and see how the Top 5 would shape up.
Here it is.
1. Stanley Kubrick
2. Martin Scorsese
3. Steven Spielberg
4. Quentin Tarantino
5. Tie - David Fincher/Paul Thomas Anderson/Akira Kurosawa
It's only 17 schomes, but I still think it's a pretty good indication of what the majority of schmoes would choose anyway.