For what it's worth, my top ten most influential scientists of all time would be:
1. Newton
2. Aristotle
3. Darwin
4. Gallileo
5. Copernicus
6. Einstein
7. Mendel
8. Maxwell
9. Fleming
10. Watt
Admittedly, I'm just an amateur student of history. But I'm stuck at work late and needed a break, so I thought I'd see if I'd I get a reaction...
You don't think Louis Pasteur merits the top 10?
I'd say Galileo, Newton, Einstein, Maxwell....
Maybe I'd flip Einstein and Maxwell. Close call.