Yeah, I agree. Becerra's punches were shorter, and IMO faster, which would be the difference here. Zamora's chin might be better (or not TBF) but I don't think either could take the other's power, so for me it comes down to who'd get that killer in first. Obviously boxing is more complex than that, as I think both would get up and try. But broadly, I think Beccera beats him to the punch with the left and works from there.
Yeah, I think Zamora was a more explosive puncher, but Beccera was more technically sound and balanced, on top of the fact that he had big power himself.
For me, Zamora is the hardest pure puncher ever at 118. Pimental, Zarate, Olivares, etc; could all rival him, but in terms of God given power, I think Zamora was better than all of them.