Re: Harder puncher: Ingo or Sonny
They both could punch very hard.
Ingo stopped Machen in 1 in 1958. Liston beat him (W12) in 1960.
Ingo stopped Patterson in 3 in 1959. Liston stopped him in 1 in 1962 and in 1 in 1963. Patterson also stopped Ingo... in 5 in 1960 and in 6 in 1961.
Ingo also stopped Henry Cooper among others. Liston also stopped Folley and Cleveland Williams x2 among others.
They were similar in height, Liston had a longer reach and was about 10-15 Lbs. heavier.
Liston has the better resume and knocked out more big name fighters.
I'll give Liston the nod here but Ingo could crack.