Bisping looks like a beast so far. He is undefeated and has won all of his fights by KO. I cannot speak for his fights in the U.K., because I have never seen them, but Bisping has to beat a quality opponent before we can say that he is the real deal. All his matches on TUF were against cans and Eric Schafer is B- fighter. I would like to see him fight Forrest or Bonner to get an idea on how good he is.
If he struggles with them then he needs a few fights before facing guys like Tito, Rashad, Jardine or Babalu.