I feel that both at thier bests... Rosario KO's Hatton within 6. Too much speed, and power, and theres no way I see Hatton taking the same bombs Chavez took to get inside of Chapo.
UH not to sure about this it depends on where the fight is and What hatton shows up the one that fought Tyszu. could bull Rosario to the ropes and Smother his power and Rough him up as well as getting to his Body. Plus Hatton has better foot speed then Chavez and faster hands IMHO. so it could turn in to a close quarter fight which take place on the ropes the Majority of the fight. the hatton the showed up vs PAc, well his foot speed was no where near it's peak and he came in with his hands down.that one was already shop worn and been battered in several fights Collozo, PBF, Lazcano. so i would actually favor hatton from the Tyszu fight 60/40.