Fury has a lot of things to work on and he hasn't really improved much since his debut which could indicate that a change of trainer is needed but lets not write him of just yet. He is still only 22 and his height and reach (if he learns to use it properly) will give any HW fits.
Good raw potential but he needs a better camp. A better trainer and more sparring are absolutely essential. That's why his progress has stalled but he does have a lot going for him. Pretty good stamina, despite the McDermott rematch, really good chin, lots of size, good punch variation and decent skills. He looks underwhelming against shocking opponents but he's a pretty good prospect.
Good comparison, but I think Fields pretty easily beats him, as well. That big giant Ustinov Ukraine fella would be a good *get outta the sport* fight for Fury. And the Ustinov guy is also C level, but he'd have Fury's number, who is D level, if not E. LOL