Even a past it Golovkin put some daylight between himself and a prime Canelo. I see prime Golokvin being the harder fight for Hagler.
Pretty much agree with your post. Just one observation here, that people often forget. Both Canelo and GGG are bigger men than Hagler. The different rehydration rules means that they are well into the 170-175 mark on the second weigh in and probably comfortably light heavyweights when they step into the ring. I'm guessing they would have about 10lbs on Hagler, which is not insignificant. A rehydration clause would help Hagler and not Canelo or GGG.