Piazza lost home runs due to his home parks, but it's difficult to avoid that he was still hitting in an extremely good era for hitters overall. Compare him to Johnny Bench who hit 389 home runs when almost every park was modeled like Shea, and it's a bit muddled. Baseball-Reference.com has a tool that lets you quickly create neutralized statistics.

Yeah. Even for the era though, I think Piazza in more favorable home ballparks could've gotten 2,500+ hits and 440+ HR compared to barely eclipsing 2,100 hits and 425 HR. He was putting up .320+ batting averages while hitting over .350 or .360 on the road alone.

It's interesting to note that Bench, while hitting 195 HR at home and 194 on the road, actually hit better for his career at home including almost .010 points better in BA and .020 better in SLG.

I did a quick Neutral Park NL in 1996 and 1998 for Bench to see how he'd compare to Piazza.

**Mike Piazza Real Life Stats**: .308/.377/.545 with 1048 R, 2127 H, 344 2B, 8 3B, 427 HR, 1335 RBI, 759 BB, and 1113 K in 7745 PA.

**Mike Piazza Pro-Rated #s**: .308/.377/.545 with 1224 R, 2485 H, 402 2B, 9 3B, 499 HR, 1560 RBI, 887 BB, and 1300 K in 9048 PA.

**Johnny Bench 1996 Neutral**: .285/.361/.505 with 1265 R, 2264 H, 420 2B, 24 3B, 427 HR, 1592 RBI, 984 BB, and 1292 K in 9048 PA.

**Johnny Bench 1998 Neutral**: .282/.358/.500 with 1243 R, 2235 H, 417 2B, 24 3B, 421 HR, 1563 RBI, 974 BB, and 1292 K in 9007 PA.