David Lee vs. Si Simmons — Career Comparison

Looking at the career totals, David Lee and Si Simmons are fairly close on the surface numbers. David Lee posted stronger numbers in ERA (4.37 vs 5.4) and home runs allowed (1.09 per nine innings vs 1.35). Si Simmons had the advantage in WHIP (1.500 vs 1.665). By the career numbers, David Lee 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.