Tom Seaver
Seaver led the National League in wins three times, in 1969 and 1975 with the Mets and in 1981 with the Reds.  He led the National League in earned run average three times, in 1970, 1971 and 1973.  He led the National League in strikeouts five times, in 1970, 1971, 1973, 1975 and 1976.