You can't knock anyone out without technique, moving fast means absolutely nothing if you haven't summated any force. To do that you need coordination and technique.
I think Kirkland is WAY overrated as a puncher, Kirkland isn't even particularly heavy handed for a 154lb fighter.
Quillin, David Lemieux and Daniel Jacobs are big MW punchers but none of them has power like Golovkin
Chavez is a CW who drained to fight @ middleweight Golovkin is a middleweight who has power like some Cruiserweights
exactly. lemeaiux is physicly like a big 154 boxer, but not a natural strong big middleweight like ggg or martinez, they are physicly bigger and they punch harder than lemeiaux, they both at the top.
trip G, quillin, rubio and pirog. I hesitate to include chavez jr in the list. is the man even a middleweight?