As limited as Wilder was he never lost to the guys of Darrol Wilson or Cedreck Fields caliber which Briggs did TWICE while being in his prime years. Wilder by KO
Comes down to if Wilder could survive Brigg’s bum rush. He would often fly across the ring and try and overwhelm his opponent early on, it usually worked against the C listers Briggs was being fed. But once the opponent survived that and the fight settled, Briggs was not the same and would be open to Wilder. wilder would probably catch him.
Briggs collapses from overexhaustion. Jokes aside Wilder would tire Briggs and knock him out sooner or later.
I think there would be a moment similar to the Ortiz fight where Wilder gets in big trouble but ultimately he would pull through for a late stoppage win.
The only difference between Briggs and Ortiz... is that I think Ortiz understood the basics of boxing. Briggs was just a juiced up guy who could punch for a few rounds. No real artistry to it. Not to say Ortiz was great but he showed me more then Briggs.