Let us forget 17 > 11 due to the AO.
How can Borg be GOAT when he fails to win a major (USO) all his career ?
Federer, Nadal and even Agassi have achieved that and Djokovic is on the line.
Borg quitting 25 or losing passion is no excuse. if he did not have the passion, then dont get him into the GOAT discussion in the first place.
During the late 70's he was the master of French and Wimbledon and no one was even close. That is all to it.