ACS, how about, after adjusting for pitchers faced, you adjust for the stadium as well? This season, for every one hit in a nuetral stadium, a hitter in Coors Field gets 1.122 hits due to park factors, while a hitter in Turner Field gets 0.905 hits.
So in other words, Holliday has 12.6 extra hits this season because of Coors Field. His nuetral home batting average -- if Coors Field was nuetral -- would be .334 instead of .374. This would make his total batting average .319.
Chipper, on the other hand, has 7.98 less hits this season because of Turner Field. His nuetral home batting average would be .356 instead of .322. This would make his total batting average .359.