I think tsuwm's right...but what about slugging percentage?
Fergie Jenkins pitched for the Cubs, and Billy Williams was a top rate player.
And I just saw a spot on the news that there's a guy in Canada who customizes maple bats for many of today's players, including Barry Bonds, as opposed to the traditional Louisville Slugger ash bats. The bats have a larger "sweet spot" and harder wood... now let's just give one of those to Ruth or Mays or Ted Williamshi, wow and see what happens! Sheesh!

And, yes, I willingly have entered the Baseball Hall of Shame for my major-league gaffe...but spare me some mercy, guys...please?