I didn't like the holding against Povetkin and several other opponents of the past few years, but still I prefer to watch Klitschko.
Klitschko tries to KO all his opponents. He went for the KO in the later rounds against Jennings. He stops about 80% of his opponents, many of whom are undefeated, and he has the most KO wins in title fights of any HW champion in history.
Mayweather didn't even try to stop over-matched smaller men like Guerrero, Marquez nor even an injured and faded Pacquiao.
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