Not to reignite the WAR discussion, but Rivera has a higher career WAR (per B-R) than Red Ruffing, Three Fingers Brown, Whitey Ford, Schoolboy Hoyt, Sandy Koufax, Al Spalding and Early Wynn, all of whom are in the HoF as starting pitchers. Rivera arguably deserves to be in the Hall because he was just that good period. And that's even before getting into his completely absurd post-season record. I'm fine with relievers getting into the Hall if Rivera is your standard.