I must have seen Kell play toward the end of his career, but don't recall it. Then again, I'm a National League fan, so I didn't particularly follow him.
I just looked up the guy's statistics - he was good but not great. If the guy was so tremendous, he wouldn't have been traded four times in the middle of different seasons. That would just about qualify him as a "journeyman" in an era before agents and free agents. Also, he never played for a pennant winning team, and only twice did his teams come within ten games or less of the pennant winner. So most of his career was spent in relative obscurity with mediocre or bad teams.
Did he deserve to be in the Hall of Fame? Very debatable. Even though it's not supposed to be considered as a factor, his long broadcasting career and friends gained from that might have been decisive in his HOF election..
I'm not knocking a guy whom I never met and just passed away, merely being objective in a strict baseball sense.
I am only commenting as one who has played the game. He was very good, As I said, he made it look easy. Moved better than Robinson.