Batman has Kane, Miller and O'Neil
Superman has Seigel, Shuster, and Maggin
Flash has Waid
Wonder Woman has Marston and Perez
Swamp Thing has Moore
Is John's now a name that from the end of his run all other writers will be compared to? Imo it's hard to think otherwise. The character may have never been more popular than under John's pen. And the franchise prospered.