I don’t know, Fred Franz seems more likeable than Rutherford to me. Nobody seemed to be sad to see Rutherford go whereas at least some apparently liked and admired Fred Franz. He may have got cantankerous with age, and defensive and more eccentric as a mechanism for coping with the 1975 failure for which he was largely responsible.
If I recall correctly, Albert Schroeder was critical of Fred Franz over 1975 but he also delivered a sincere eulogy at his funeral. (Available on YouTube) And wasn’t Rutherford even worse over 1925 than Franz on 1975?