Board Thread:Naruto Discussions/@comment-43776375-20190927162335/@comment-32685487-20190928015719

Prime Hiruzen is the only non kkg non jinchuriki and non senjutsu using Shinobi to earn the title of God of Shinobi. When he declared proudly that he was the strongest one there and Tobirama didn't say a thing, and then nominated him as the Hokage that proves his title further. Prime Hiruzen was in the era of the Third Raikage and Onoki and Hanzo yet Hiruzen was the Third God of Shinobi,and he was said to have never lost a battle during his tenure. It goes to show that although we weren't given the privilege of seeing his abilities Kishimoto had him down as being that strong.