The Frenzied Berserker is only an NPC or a one-PC campaign, since he kills all of his fellow party members the first time he stubs his toe.
I think the Cavalier/Paladin can do pretty well, with no cheese.
High level Cavalier/Paladin, Lance, Shock Trooper feat (Heedless charge), max power attack, smite evil for Paladin levels.
My knight starts 50' away from the bad guy and ends 50' away from the bad guy. And, oh yeah, let's inflict 200+ points of damage on Mr. Bad Guy if we don't roll a 1 on the to-hit roll.