I just think Aspinall has not been tested much, he has fought a couple of good guys, but only a few. Blaydes, Pavlovich and not a lot else sticks out. Volkov is good but I don't overly rate him, he is a very hot and cold fighter.
Blaydes has been tested more in my opinion and for longer.. he's fought a lot more top 10 guys, when they fought him they were in the top 10, its only relevant to the time remember. People can laugh at Hunt but he was in top 10 and so was Rozenstriuk at the time.
I just favor Blaydes because no one has ever beat him up really, he has just been caught with punches out of nowhere for his losses. We shall see, but I think Blaydes is much better than people realize and can wrestle anyone to death if he doesn't fall in love with the hands.