Definitely Hearns. Williams is not on this level imo, he has many flaws and Hearns is possibly the best ever at 154.
If Williams could get to hearns body he could catch him upstairs. Unfortunatly He could not avoid Hearns power and he would be Ko'd.
williams dosent use his height to great effect and tommy does i think tommy would keep williams (who would be trying to get inside) away and set him up for his right hand and land it through out and KO him around the 5th
Williams has a very good beard. Over 12 I'd gor for Tommy 117-111, so Williams power and workrate would make this a closer fight then others are predicting. I think hearns stops P-Dub in a 15 rounder.
Tommy destroys him, Williams has never faced a fighter close to the skill set of Hearns let alone power and Thomas would out jab for Paul. Hearns by mid round stoppage.