I agree, although I like how the championship phase of his career panned out in terms of the body of work, an almost unbroken run of back-to-back significant fights.
Paul Sykes. Would have been terrifying and hilarious to try. For those who fancy an esoteric and beautifully written boxing autobiography, I highly recommend his.. https://www.goodreads.com/book/show/26865128-sweet-agony?from_search=true&from_srp=jhxyNUEwxY&qid=6
Kell Brook. I wouldn't have let him anywhere near GGG. Effectively ended his career at the top level.
**** then add any good fighter with a bunch of amateur fights have them go pro sooner too many left too much behind