This fan post is going to be short and to the point.
Its pretty obvious that any heavyweight willing to stand with JDS is in serious trouble. However the weakness that it seems JDS has is he does have the tendency to gas slightly in the later rounds (the fights that have got there).
Looking around the heavyweight scene, the only person with that wrestling background who I believe can stifle JDS is Barnett.
I'm not saying this is nailed on, but with the right game plan I do believe Barnett has a good a chance as most at the minute.