im over 65 an i saw all the wseries from 1955 an on. in 8 world series games sandy was 0.95 era, an beat the big yankees a super hitting team. koufax has 12 shutouts in 1 year. unhittable and id say better than anyone even bum and arrita. drysdale was also better an on same team the dodgers. best 1 -2 punch ever. koufac was a lefty an threw right over the top-much faster then bumgarner and a better curve if thats possible lol. and bumgarner is a great pitcher if he can keep this up over a few more years. arrieta is not as good imho. warren spahn another great lefty won 350 games an still koufax was better. there were many great pitchers but from what i saw koufax and drysdale were phenominal. YOGI berra was asked when yanks lost to koufax- he was like 25-5 or so that year. said i can understand how sandy won 25 games but i cant understand how he lost 5 !!! well afta touting bum. look at this arrieta hits 3 run bomb. wow