This would have been an easy fight for Ali. Tyson at this stage was just fighting on natural Talent and had become a one dimensional head hunter whose only plan was the right hand to the head. If that didn't work then there would be nothing to fall back on. It didn't help that he chose such a **** corner where he couldn't get constructive advice when things got tough. Ali at any stage of his career was a fast thinker and could make fast adjustments in fights. Tyson could never think of a strategy on his feet and always failed to make adjustments when things didn't go his way. You could say he was very dependent on Rooney in his corner for motivation, advice and spotting a weakness in the opposition.
Ali would win by decision or possibly a TKO in late rounds. He drowns Tyson late in a 15-round bout. If its 12 rounds Ali decisions Tyson.