I don't want anyone to hate me. I'm not making who I think would win based off who's more popular with people or even the personality's of the people or anything like that. (legal disclaimer) making my choice based purely on the strengths and weakness.
I see the fight taking place like this. The Zombie knows no fear. Bunz muscles wouldn't scare him. I see the Zombie rushing towards him attacking him. At the early stages The Bunz using his strength to toss around the Zombie like a rag doll. He might even be throw against the wall or through a door.
Since the Zombie. "T" knows no pain. Those attacks wouldn't be effective. Sooner or later the Zombie would gain the upper hand. Bunz would have a chance to call on his friends for help. As the weakness in his stats provided his ego gets the best of him and hes not the best in social situations. Bunz would get over confident. Maybe even try to take a picture with his shirt off with the Zombie.
That would be his biggest mistake. Not calling for help. Letting his ego gain control. Zombie feeling no pain would gain control biting Bunz on the forearm ripping his flesh. Then biting his skin. Since Zombie already dead. Unless Bunz has a way to cut his body in half. He'd lose.
My Pick would be Zombie T based on that. I could be wrong because this all fictional.