http://www.thebaseballpage.com/past/pp/richardjr/Best FB JR Richard, Houston Astros - personally saw him throw a FB 105 mph on the stadium gun at Candlestick Park. Threw a No-No that day. Should be in the HOF instead is probably still homeless.
Best CB Sandy "The Man" Koufax - saw him throw a non-no against the Giants at Candlestick.
Best slider tie between Fernando Venezuela - Dodgers and Robb Nen - Giants, 94 mph. when on, just untouchable.
Best knuckleball - Phil Neikro
Best cutter - Mariano Rivera by far.
Best Backdoor cutter - Greg Maddux
Best slurve - Don Drysdale
Best splitter - Roger Clemens