I think Piazza is the most interesting question.
No doubt the greatest hitting catcher of all time.
But, despite never being caught or even implicated, the idea he used PED’s has kept him out so far.
Guilt by association with an era.
Piazza’s numbers started going down, not up when he hit 35 years of age. Biggio on the other hand started hitting better after the age of 35. Now tell me which one was probably on roids.