While Qawi mat be the beat fighter of those mentioned I think Beterbiev is all wrong for him. This is a bit of exaggeration, but it’s sort of a Foreman/Frazier type of thing. Tarver is best known for beating in an old Roy Jones. He is not nearly at the level of a Beterbiev. Almost all of his losses were to veterans who didn’t have their punch anymore. (Jones, Hopkins, Johnson) Prime Beterbiev knocks Tarver out. I never know what to make of John Ruiz. He was very difficult to fight which allowed him to win rounds against guys who really didn’t know what to do with his style. I think the same might be the case against Beterbiev but I do think that Artur wins a comfortable but competitive decision. Jirov would give Beterbiev the toughest time. He is a natural cruiserweight with some good boxing skills. Eventually, I do believe that Beterbiev would get to him and hurt him if not, finish him. Beterbiev wins all for.