Hunt's record is pretty reflective of who he's fought and how good he is.
He's lost 11 times. 7 of those losses came against guys who were former, current, or soon to be HW champions of either Pride, Strikeforce, or the UFC.
He's simply not major org HW championship caliber.
He does better against LHW champions (like Wand) or minor org HW champions (like Big Country or Big Ben)... but even there he sometimes struggles (as with his loss against LHW Strikeforce champ, Moussassi).
He's an interesting match-up for high level guys because of that KO power, but he really hasn't capitalized at the highest level except against a shot Mir.
Ironically, his split decision win over Cro Cop is the most impressive thing he's ever done.