(3) Louis Pasteur vs. (2) William Shakespeare
Shakespeare's catalog of poems and plays is unrivaled, and with his tight plots, beautiful wordplay, and ribald puns, there's really something for everyone in the Bard's work. Pasteur was less entertaining, but it's tough to find any fault with his work. After all, he told us that microorganisms cause disease, which led to all sorts of health breakthroughs in addition to the rabies and anthrax vaccines Pasteur himself created. Without pasteurization, our milk and beer wouldn't be as durable or as delicious. Shakespeare's work is more quotable, while Pasteur's is more drinkable. Who's the bigger genius?
[See the whole bracket here.]