I'm not a huge fan of fan of Cain personality wise (much rather listen to Werdum, Barnett, Hunt, Overeem, JDS and even dancing Rothwell) but every fight he is in is brutal. Either he destroys them quickly (like Bigfoot) or takes a few years of his opponent's life (JDS), but damn he barely fights.
He's only fought the same 2 guys since November 2011, and a year before that was Brock to win the belt. At this rate he'll have maybe 4 or 5 more fights before he retires.
On the actual fight. I love watching Hunt (and the weirdness that follows him around online), but he is going to be heavy underdog against Werdum. If Werdum works for a take down then it will be all over. Hunt has improved alot, but even Roy got him down for a minute. If Wedum gets on top of him there will be no getting back up.