Here is a nice essay putting the careers of these two unblemished sluggers in perspective:
http://sportsillustrated.cnn.com/200...fey/index.html
As someone who remembers how effortlessly Ken Griffey produced 50+ home run seasons at his peak, seeing him almost limp towards 600 career homers really reinforces just what Hank Aaron, Babe Ruth, and Willie Mays did legitimately. Griffey still has a decent chance to match Mays in career homers if he can hang around about three more years, but it won't be easy. Frank Thomas is more in the Ted Williams mold of a fantastic pure hitter who also had great power (Williams, btw, may have been the all time homer leader had he not fought in WWII & the Korean War. I know Williams is an all-time stud when you consider his war time and athletic record, and he was the first HOF player to publicly push for recognition of the great Negro League players also.

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