Best lefty off all time? My vote is Koufax!

[G1911]

Originally Posted by rats60

ERA Koufax 2.76 Grove 3.06
WHIP Koufax 1.106 Grove 1.278
FIP Koufax 2.69 Grove 3.62
K/9 Koufax 9.3 Grove 5.2
K/BB Koufax 2.93 Grove 1.91
Shutouts Koufax 40 Grove 35
Strikeouts 2396 Grove 2266
No Hitters Koufax 4 Grove 0

All the stats support Koufax except wins which are a team based stat and longevity. Grove played on loaded offensive teams for most of his career. Foxx, Cochrane and Simmons in Philly and Williams, Foxx and Cronin in Boston. From 1958-1966 Koufax had a top 10 offensive player 4 times in 9 years, Wally Moon was 8th in 1958, Tommy Davis 4th in 1962, Maury Wills 5th in 1962 and Jim Gilliam 9th in 1963. Koufax was better than Grove and it is not close.

Ignoring context completely. All the best pitchers are in the deadball eras, or context matters. Do we really believe the top 30 or so pitchers were in just two short periods of baseball history? You have to completely ignore longevity, and completely ignore context and era in order to come out with Koufax on top. That you are citing that Grove played in an offensive era as a negative is strange. If we are ignoring context and longevity, whichever left had the single greatest season in the deadball era is the permanent best lefty ever. 5 years of Koufax or 9 of Grove? I'm taking 9 of Grove without even having to stop and think. Koufax pitched in an environment perfectly suited for pitchers and was great for 5 years. Grove was great for more than twice as long in a context NOT friendly at all to pitchers.

Kershaw > Koufax. Spahn > Koufax. Johnson > Koufax.

ERA+
Grove 148
Koufax 131

ERA crowns
Grove 9
Koufax 5

FIP crowns
Grove 8
Koufax 6

WHIP crowns
Grove 5
Koufax 4

Strikeout Crowns
Grove 7
Koufax 4

Innings Pitched
Grove 3,940
Koufax 2,324

WAR
Grove 106.7
Koufax 48.9