What's good for one is good for the other. The difference is Kovalev did the job, Calzaghe didn't even have the decency to at least give Hopkins a rematch.
why you ignoring the salient argument about SKILL LEVELS? - that ko4clev outboxed Hopkins with his superior skills, whilst inferior joe had to settle for 2nd fiddle until Hopkins tired before cowardzaghe could then safely rally with his ineffective output to just scraype a win by life n death.
I hate to say it, but, I think I would lean toward Calzaghe in this one. Sergey has proven that he is not so great at adjusting to his opponent mid-fight. And, make no mistake, Calzaghe would take a bit of solving.