IMO it's Bill Murray hands down (and I'm a huge Woody Allen fan). Very difficult to narrow the list to top 10.
1. Groundhog Day
2. Caddyshack
3. Ghostbusters
4. What About Bob?
5. Quick Change
6. Maddog and Glory
7. Kingpin
8. Rushmore
9. The Royal Tanenbaums
10. Stripes
1. Groundhog Day
2. Caddyshack
3. Ghostbusters
4. What About Bob?
5. Quick Change
6. Maddog and Glory
7. Kingpin
8. Rushmore
9. The Royal Tanenbaums
10. Stripes