Mr. Satan is definitely strong compared to normal humans of DBZ, but that's still exponentially weaker than any Main character in DBZ, or any ninja in naruto for that matter.
Lollz
Not counting the DBZ characters Mr.Satan is the strongest person on the planet.
He tore phone books in half,(A feat impossible for normal humans) or the time he pulled mutiple buses by a chain just to show how strong he was.
Each bus was over a ton so that was over 8,000 pounds he moved.
The only people lifting/pulling that much (Without justu or transformations (which only the top tier ninja can do to begin with)is either tsunade,gai or lee.
In terms of psychical strength he blows most of them out the water whether you like it or not.
However they do got justu something he doesn't have.Depending on who he fights he could take on some chuunin ...believe it...or not it doesn't change anything.