Wlad is so above the competition in regards to every aspect other than chin that it assures his dominance.
He obviously does have a glass chin though as the punch in round 5 demonstrated. I wouldn't favour him against any of the other dominate champions of the previous eras.
That being said, this last fight of his was a fun watch. He put on a great athletic display and I can't see any other fighter currently in the division being favoured against him.
... he's lucky Vitali shares his last name.