Ben Johnson vs. Mike Willis — Career Comparison

On the career pitching numbers, Ben Johnson posted a stronger line than Mike Willis. Ben Johnson posted stronger numbers in ERA (3.91 vs 4.59) and home runs allowed (0.78 per nine innings vs 1.09). By the career numbers, Ben Johnson had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.