This is a tough one. Tubbs in & out of shape always had fast hands and was a smooth boxer. Both guys were excellent boxers that were susceptible to big punchers. Williams is the heavier handed of the two and has the longer reach and a piston like Jab. Since I don’t see Tubbs hurting Williams I think Carl will out work him and win over the distance, but possibly even stop Tony late. Carl could really sock with that right hand. But safe bet in my opinion is Williams on Points. The Williams that fought Holmes up to the Williams that fought Tyson I think handles Tubbs. I love Tubbs but Williams is all wrong for him.
You could be right but if there was a stoppage I think it would be the Truth. Probably a distance fight though.