I didn't say Juan Diaz has a great chin, I said Paulie M does. Juan Diaz can definitely bang, his low KO's is mostly due to stamina and such.
Jorge Castro - cement block for a head, but rarely talked about. Took big shots from a prime Terry Norris and 160lbs Roy Jones without any obvious effect, in addition to the ridiculous rope a dope KO of John David Jackson. In-Jin Chi - most fighters in the 12th round against Erik Morales are just happy to survive, but Chi was chasing him around the ring literally asking for more.