Have a look at that sequence at 5.43, jeeeeeez. Patterson blazes away first with that blinding handspeed and have a look at Liston's response. Fantastic timing and reflex against such a quick guy.
I am sorry. I know that there is a great cult of Liston out there, but the best guys on his record, Foley/Machon/Williams/Patterson, were all beatable guys that would not even be big cruisers in this era. Liston was a minor great, and it was undeniable that he could hit, because the men who shared a ring with him said so. But hardest ever?
First thing that comes to mind when watching this video is....how in the heck does Anthony Joshua deal with this animal pressuring him with an onslaught of huge punches??? No way Joshua last 3 rounds!