Jay Aldrich vs. Hipolito Peña — Career Comparison

Looking at the career totals, Jay Aldrich and Hipolito Peña are fairly close on the surface numbers. Jay Aldrich had the edge in ERA (4.72 vs 4.84). By the career numbers, Jay Aldrich 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.