Ambiorix Burgos vs. Pedro Villarreal — Career Comparison

Looking at the career totals, Ambiorix Burgos and Pedro Villarreal are fairly close on the surface numbers. Pedro Villarreal had the edge in ERA (4.29 vs 4.6). By the career numbers, Pedro Villarreal 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.