I would pick Holyfield to outgun Shavers, but it might be a potentially dangerous fight if Evander decides to get gutsy and slug with Shavers. Of course, Quarry dusted SHavers easily, but we can't make predictions based on one single bad performance. Evander could have been floored or hurt, if he chose to trade at close range. At anyrate, I think Holy had too much for him and would likely stop him at any point depending on how Shavers showed up.
If Holyfield got in deep trouble like when 'Smokin' Bert Cooper almost had him out of there in 91' Shavers could knock him out. I doubt that would happen though. Holyfield is on a different level than the 'Acorn.' Holyfield by kayo in an exciting, spirited fight.
Holyfield via knockout in a short, exciting fight that sees both men hitting the canvas. The difference is that Holyfield gets up