Which Heavy. Champ. lost the title in the most brutal fashon?

floyd patterson. he was beaten up AND humiliated. other champs took severe beatings, tyson, willard, berbick. some were humiliated, lewis, seldon. but patterson had BOTH happen to him. it was obvious it was a case of a big mean man beating up someone who had no business in the ring with him, and for someone to be become heavyweight champion then get whipped like that doesn't seem right.