Brett Sullivan vs. John Sullivan — Career Comparison

Looking at the career totals, Brett Sullivan and John Sullivan are closely matched on the surface stats. John Sullivan posted stronger numbers in OPS (.582 vs .541) and on-base percentage (.312 vs .250). Brett Sullivan had the advantage in slugging (.291 vs .270). By the career numbers, John Sullivan had the stronger overall case — though those totals don't account for the eras and run environments each player worked in.