Quakecon 2007 Quad Damage tournament required participants to play all 4 quake games. Having said that, according to wikipedia, tox won that tourney and fox came 2nd place.
tox practically revolutionized quake 3 and quake 4 with sensitivity changes. he was so reliable at hitting in q3 tdm that a lot of people copied his low sens style. then in q4 when they patched it to stop tox's style, he reverted to a high sensitivity and then when he couldn't be stopped again, they pulled the plug on the game. fucking domination.