Mr sheen would win because ive never seen him once crash that red plane of his that he flies about in on the adverts. The old man would win jackie chan because jackie chans too much of a gentleman to beat up an old man.
James Cameron would win because the crowd would get behind him and encourage him to murder David Cameron. He would be awarded a Nobel prize of some sort for killing him. Al Capone or Sylvester Stallone?
Dawkins would bore Hawkins so much by talking about evolution that he'd end up strangling himself with his own guitar lead.