Your topic intrigues me, considering there is no director I am more familiar with than Mr. Allen.  Despite my extensive viewing of his films I still have to agree with the general public on number one, 2-10 might be interesting though.
1. Annie Hall
2. Interiors
3. Deconstructing Harry
4. Purple Rose of Cairo
5. Manhattan
6. Stardust Memories
7. Hannah and Her Sisters
8. Crimes and Misdemeanors 
9. Broadway Danny Rose
10. Zelig
