Hugo voters thought there were plenty of years in which Frederik Pohl was a better editor than John W. Campbell, a choice necessarily based on an overall appreciation of the magazines each man edited — because when would a fan see a mano-a-mano contest of two editors’ skills? Well, now you can find a great example in Pohl’s post about agenting Hal Clement’s Mission of Gravity and how he overcame Campbell’s original rejection of this classic sf novel.