(1) Isaac Newton vs. (3) Louis Pasteur
Pasteur is fresh off of his upset of Shakespeare, but a matchup against Sir Isaac Newton hardly gives him a chance to catch his breath. Pasteur's discoveries and innovations in microbiology and vaccinology help keep all of us healthy and give us unspoiled beer and milk, not to mention helping the silk industry to thrive. The stats on the back of Newton's trading card are just staggering, though; he discovered gravity, developed calculus, built the first practical reflecting telescope, codified physics' laws of motion and still had time to lounge around under apple trees. Pasteur's discoveries have surely saved millions of lives over the last century, but Newton may be the premier scientific and mathematical genius of all time. Which one gets the nod here?
[See the whole bracket here.]