Ustinov and Boytsov are the only ones that could do something in 6 months time, with a couple fights more. All the others need at least a year more.
For those who haven't seen Ustinov; HAYDAJOKE is just hayedajoking. At least, I hope he is. Ustinov might be the least skilled heavyweight to appear in the top 20 rankings of any organization in the last 20 years.
Boystov, by a wide margin. Ustinov is big, but lacking otherwise. And I can't believe you even put Audley on that list.........He's been throughoutly thrashed, repeatedly, is 39 years old, and still considered a prospect? LOL He is in the twilight of his lackluster career, for crying out loud. HOlyfield has more potential than him.