In their prime, Giant Haystacks was the larger of the two in all ways. Calhoun was around 600 pounds at his heaviest (more like 500 in reality) at around 6'4" while Giant Haystacks was 6'11" and was over 700 pounds at his heaviest. There is a picture of Andre with Giant Haystacks and he was around the same weight at the time as Andre, but Andre still dwarfed him by 5". Same with Andre and Calhoun showing how much shorter he was to Andre and was around 430 pounds at the time toward the end of the 70's.
