If Ustinov catches him clean he may KO Wilder, but Deontay would probably use his jab to keep him off of him and win by UD or late stoppage like Pulev, Ustinov is around Stiverne level.
He KO's the con man with a big clubbing right hand before the 6th round. :deal Wilders jab is also nowhere near as good as Pulev, nor is he as fundamentally sound.
Wilder would struggle with Tom Dallas. He knows he is a joke, he is a laughing stock, you can't face the opposition he has as a World Champion and be taken seriously.
I'm convinced that before the Thompson fights Price wasn't really any better or worse than Wilder. Maybe a little bit more robotic, and stiff but other than that there's not really much difference. A fight with that version of Price and today's Wilder would be 50/50. Whoever lands first wins. And I favor the right cross of a confident Price over any punch Wilder posses. Price's confidence was shattered to pieces along with his chin by Thompson. He beat the fight out of him.