Mark Prior vs. Andy Sonnanstine — Career Comparison

The numbers give Mark Prior a clear advantage over Andy Sonnanstine across the core pitching metrics. Mark Prior led in strikeout rate (K%+ 170 vs 101), run prevention (ERA+ 133 vs 90), and skill-based run prevention (DICE+ 137 vs 109). Andy Sonnanstine held the edge in walk avoidance (BB%+ 172 vs 110). Mark Prior was the better starter — the numbers make that case clearly.