Data in support of Trop's contention:
Looked at Season 13, when Swamp's favorite player Patrick Greene hit 62 HRs, and one crude measure of productivity which is available in the regular stat files - Runs Created / 27 Outs
Greene was at 5.16 RC / 27
3 other regulars (>300 ABs) guys on Wichita / LV were higher than Green; 5 were below
I found 5 other teams that played in strong pitchers parks. here are the number of regulars on those 5 teams with RC/27 > Greene's 5.16, and those < 5.16 RC/27:
St Louis 5 players > 5.16; 6 players < 5.16
San Antonio 9 players > 5.16 ; 3 players < 5.16
San Diego 5 players above; 7 players below
Memphis 7 players above; 3 below
Portland 5 players above; 3 below
That adds up to 34 players > 5.16; and 27 players < 5.16
So, by this crude measure, and 10 minutes worth of analysis, you could conclude that Patrick Greene, was in the 42% percentile for RC/27 outs, which is pretty mediocre, even while hitting 62 HRs.
+1 for trop.