Cain's chin is fine. And his style is fine too. He's been knocked out once by the biggest puncher in the UFC. The only other time he's been in anything like trouble was against Kongo, and that was like 5 years ago. Not to mention he recovered from those punches really well and showed tons of heart.
People are always just fumbling for reasons to hate the champions. Waah Cain has no Chin, Jones only wins cause he's big, Anderson can't stop a takedown, Weidman's win was a fluke, GSP is boring and has no chin, Benson is boring, Pettis lost to Guida and can be lay and prayed, Aldo has lost his killer instinct, Cruz is boring, Mighty Mouse is too small. Yada yada... Bunch of fucking fatties on here acting like they've got these professional cage fighters all figured out haha.