Nobody cares, I think Shannon could take a beating though, proved it vs Lewis and Vitali that he could really absorb shots. Zero stamina unlikely to count as AJ has the gas tank of a bicycle. Briggs mixed it with better guys...Foreman, Vitali, Lewis, Botha, Lyakhovich, Ibragimov....this was before Lyakhovich became a walking advertisement for CPE. Yeah I would give it to Briggs, probably finds one fast left hook to precipitate the demise.
I dunno. Both are/were pretty shitty. But Shannon, for all his flaws, was very explosive early, and AJ is so stiff and rigid. The longer it goes, the more it favors AJ, but there's a VERY real possibility of Briggs stopping him early. Hard to call.