Hrgovic has a better defence, that is for sure. After the last fight I would strongly favour his chin over Joyce as well
A perfect shot with that disguise set up from a 20st 8lbs man who punches as hard as Big Bang does would've sparked the vast majority of HWs out cold and very few would've been back up on their feet within 10 seconds so he obviously has a very good beard. But the correct answer is Hrgovic because not only did he withstand 12 rounds of brain rattling abuse against Big Bang he was a lot lighter than him and he's never been stopped amateur or pro or even down prior to facing Big Bang and I don't feel that KD was even legit.
It's hard to compare chins when this is being measured by how they took Zhang's Chinese power. One blocked punches with his face and one didn't.
Yeah I remember that fight. It's worrying to see him taking flush full power bombs like that, and so many of them, as it was against Big Bang, but it's very impressive he can take them, even more so when he takes many of them in quick succession. This is why I say he has the best chin in the division - he's fought many of the best SHWs in the amateurs and is one of the few who was never dropped or stopped
At times it look like Hrgovic wanted out, turning his back to Zhang. We now know why given Zhang's power. If Zhang was more ruthless he could have easily stopped him while he had his back turned. Nonetheless Hrgovic took lots of big shots and stayed up and outworked Zhang so I give him the vote.