I like the comparison since Iron Mike recognize Fury he can see the level of this man and how he really dominates his era, and like what you said both have similar issues outside the ring.
The good thing with Fury he was able to come back and still have the same level of recognitions while Iron Mike wasn't, he was completely forgotten as he behave unnaturally. It would be a great fight between this two heavyweights proving and adding more recognitions while they are still active fighting.
It should happen, boxing fans are the reason why they are popular now, and therefore they should give this big fight.
Time to love the heavyweights than the lower division of boxing as they really have some bulls to risk their undefeated record and fighting the best in the business. Though AJ has one loss but people does not really think it's a real loss against a great fighter, people though AJ was just too complacent during the fight and he was able to regain redeemed himself, so still now one of the best boxer in his generation.
Two great fighter fighting is such a great treat for the fans, promoter can make big money in this fight because fans are satisfied, now, I can say that's the real definition of entertainment.