If Chuck Norris travelled to another dimension to fight another Chuck Norris, the winner would be the inevitability of death, because both Chuck Norris and Chuck Norris are dead.
If you put Chuck Norris in a ranked list of the world's strongest creatures, second place would be the African bush elephant, who can lift over 13,000 pounds. First place would be like one of those big whales I guess? I don't know. What I do know is Chuck Norris would be unable to rank, because he is dead.
If you shoot a mortal man with a gun, you can kill him. But if you shoot Chuck Norris with a gun, it doesn't matter, because Chuck Norris is already dead.