Familia is a much better pitcher than Benitez, and that's really all there is to it. Familia throws a sinker, Benitez threw a straight fastball. One's prone to squaring up and knocking out of the park, one isn't so much. Also, offensive era. Benitez's 1999, by ERA-, was better than Familia last year. He was much better than average in both postseasons (though I don't know how valid ERA- is in those small samples or how it's calculated) it was really his '97 that was the worst. But Familia was way better. his ERA- is 17. I believe that calculates to 17% of the earned runs of average. (earned being key there. Familia pitched great, it was all Murphy/Duda/etc)