Can you name a time when the top dogs at Heavy, light heavy and middle hit harder?

Good question. Maybe never?

 

At the same time or are you asking about each category? If the former, then maybe never. Closest would probably be Foreman, past-prime Bob Foster, and Monzon around 73-74.

 

No. The closest is probably the '70's but 1926 is close (Dempsey, Berlenbach, Walker).

1990 missed it by a few months; Tyson, Moorer, Jackson.

 

This.

 

Yeah, they're clearly the top dogs (although Adonis can plausibly deny it).

 

(and by Moorer)

 

Marciano left in 1956,

so the three of them were really rarely together as the champs of these three divisions.

Only late 1955 and early 1956,

but these three were all-time punchers.

 

Johansson, Moore and Robinson fits in 1959.

 

It also depends what you mean by "hit harder." Wlad, Kovalev, and Golovkin seem to be far, far more heavy-handed than the 50s predecessors that have been named. All their punches have visible impact, including their jabs. Some of the older fighters may have been able to generate more one-punch knockout power than them in their absolute best punches, but I'm not even 100% sure about that.

 

I think that we are in the golden age of mandible smashing