I don't think there is another heavyweight right now who would have beaten Fury in December that wasn't named Uysk.
Sure you can give Doobie a puncher's chance, but I think Fury would deal with him in much the same way he did with Chisora for the third fight.
DDD is good, but a lot of what he does is telegraphed and Fury would see it coming and either step out of the way or counter it.
I could even see Fury showboating.