John Hiller vs. Zack Weiss — Career Comparison

On the career pitching numbers, John Hiller posted a stronger line than Zack Weiss. John Hiller posted stronger numbers in ERA (2.83 vs 4.61) and home runs allowed (0.8 per nine innings vs 2.63). By the career numbers, John Hiller 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.