In light of the recent proliferation of ridiculous threads, here's my effort.
To create the best player we need the best material. After capturing all top Quake players, I have sealed them in cryogenic chambers to await the DNA splicing program.
Categories for analysis include: weapons, timing, movement, speed, reflexes, dodging, battle tactics, composure, aggression, defensive play and gamesmanship (messing with opponents heads). Add any other categories you think relevant.
SG: Cooller (source: Dick Cheney)
Battle tactics: Fox
Defensive play: Rapha
This player will surely dominate any natural born player, past, present, or future.