Try to Make the Best Fighter by Taking Another Fighter's Best Attribute

Here's an idea, probably not an original one but still semi-interesting, that I've had knocking around for a bit. Let's say you could give one great fighter another guy's best trait - for example, Ali with Foreman's power, Julio Cesar Chavez with Sweet Pea's defense, Floyd Mayweather with Antonio Margarito's gloves, etc. How much do you think you could get a fighter to improve by swapping only one asset?

The fighter had to have fought the guy he's swapping with, though, it would be kind of lame to see every welterweight with Hearn's power or whatever, and try to keep it to the same weight class too, although I think it would be funny to see the trail of corpses if you gave Jimmy Wilde Deontay Wilder's right hand or something.

I thought this up cuz I was wondering which of the four kings would be the best in this scenario - Hearns with Hagler's chin would be broken, but Hagler with Leonard's speed would finally stop losing decisions all the time, and Duran with Hagler's size would make arguably the P4P best of the four into the biggest of the four as well (although this is the lone exception to that rule I made about weight class swaps, don't do that unless the fighter actually fought the person who they're swapping size with).

Honestly, I would probably take Hearns with Hagler's chin just because I don't think he loses pretty much any of the fights he lost in real life without that weakness, but I could see people go a lot of ways with that particular thought experiment. But that question is like the Russian doll inside of the main question. Give me your best, or even just most interesting ideas you can conjure with this.

 

If we're doing the brain swap thing, honestly I think Mike with Holyfield's brain has a 0% chance of losing to Buster Douglas, and very well could beat Holyfield himself with that level of mental endurance and determination. And imagine what he could do with Evander's juice

Also, John, I love the profile picture, Patrick Bateman is my idol and American Psycho is just a great movie