Sarutobi being able to handle the 1st, 2nd and Orochimaru while being confined in a space by the sound 4 is a testament to how powerful he was. Hiruzen also had keen senses, being able to track down the former Hokage under Hashirama Senju's Bringer-of-Darkness Technique. Enma commented on his battle with Orochimaru, saying that it was miserable compared to his prime, even though he had clearly been able to hold his own against Orochimaru and two former Hokage without losing his composure. He still had the skill and agility to place explosive tags on both the first and second hokage's legs at the same time. Knowing all the techniques of Konoha hes probably developed defences against them. Even in his old age, his chakra was noted for being very strong, causing a dense effect on the atmosphere when released furthermore, he was known for having immense reserves of chakra in his youth. People might say a person like Itachi would get him in a genjutsu. The 3rd being a student of the 1st and 2nd probably taught him how to counter the many Sharingan techniques. Hiruzen was also called The Professor (プロフェッサー, Purofessā), due to his mastery of all forms of shinobi combat, and his vast knowledge of techniques, purportedly knowing all the techniques within Konoha. He was admired as The God Of Shinobi and Only him and the Sage Of Six Paths share the nick name God Of Shinobi
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He was old and had very little chakra while fighting Orochimaru. One of the Anbu members mentioned that his primary fighting style was to fight with Shadow Clone just like Naruto but he had to reserve his chakra so he only brought 2. Using Rasengan or Chidori would have drained his chakra too much. It wouldn't be a smart thing to do. The only way was to seal both the Hokages. He was able to counter Tobirama and Hashirama in close combat, despite them being in their prime in the Summoning Impure World Reincarnation. Even when robbed of his sight from the genjutsu Bringer-of-Darkness Technique, he could still defend himself from Hashirama's and Tobirama's assaults, blocking all their attacks to prepare for his Dead Demon Consuming Seal. After summoning Enma, he could break Hashirama's Wood Release branches with ease. Even when someone as powerful as Danzo was dying he admitted that Hiruzen Sarutobi was steps ahead of him still. Sarutobi being able to handle the 1st, 2nd and Orochimaru while being confined in a space by the sound 4 is a testament to how powerful he was. Hiruzen also had keen senses, being able to track down the former Hokage under Hashirama Senju's Bringer-of-Darkness Technique. Enma commented on his battle with Orochimaru, saying that it was miserable compared to his prime, even though he had clearly been able to hold his own against Orochimaru and two former Hokage without losing his composure. He still had the skill and agility to place explosive tags on both the first and second hokage's legs at the same time. Knowing all the techniques of Konoha hes probably developed defences against them. Even in his old age, his chakra was noted for being very strong, causing a dense effect on the atmosphere when released furthermore, he was known for having immense reserves of chakra in his youth. People might say a person like Itachi would get him in a genjutsu. The 3rd being a student of the 1st and 2nd probably taught him how to counter the many Sharingan techniques. Hiruzen was also called The Professor (プロフェッサー, Purofessā), due to his mastery of all forms of shinobi combat, and his vast knowledge of techniques, purportedly knowing all the techniques within Konoha. He was admired as The God Of Shinobi and Only him and the Sage Of Six Paths share the nick name God Of Shinobi
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He was old and had very little chakra while fighting Orochimaru. One of the Anbu members mentioned that his primary fighting style was to fight with Shadow Clone just like Naruto but he had to reserve his chakra so he only brought 2. Using Rasengan or Chidori would have drained his chakra too much. It wouldn't be a smart thing to do. The only way was to seal both the Hokages. He was able to counter Tobirama and Hashirama in close combat, despite them being in their prime in the Summoning Impure World Reincarnation. Even when robbed of his sight from the genjutsu Bringer-of-Darkness Technique, he could still defend himself from Hashirama's and Tobirama's assaults, blocking all their attacks to prepare for his Dead Demon Consuming Seal. After summoning Enma, he could break Hashirama's Wood Release branches with ease. Even when someone as powerful as Danzo was dying he admitted that Hiruzen Sarutobi was steps ahead of him still. Strength, Speed and Stamina have all been hindered because of his old age. Sarutobi was said to have monsteres strength compared to the other Hokages. His strength would have most likely been and 4 because of being able to lift the heavy Enma pole at old age with some difficulty, Let's say in prime he could have lifted Enma with ease. Almost all the jounin's speed have a speed average of 4. His speed is very fast even in his old age. His prime would have been much faster but not as fast the 4th Hokage or Guy. I'd give him a 4.5 for being able to match speed evenly with Orochimaru at old age which means his peed back then mut have been a lot better.
His stamina was greatly decreased becuase of old age. But his chakra made a dense affect on the field. It was said his primary style to fight with was the shadow clone which he couldn't do too much or any other Konoha technique because of low chakra. As we all know Shadow Clone Jutsu requires a lot of chakra. To have his primary style be Shadow Clone must mean his Chakra back in old age must have been much higher. It would have been like Naruto without the Nine Tails. It would have been 4.
All the rest of the scores have a perfect 5 in Ninjutsu, Genjutsu and Taijutsu which is impressive considering his old age. In total his data book score would have been 37.5 surpassing both Itachi and Jiraiya who have 35.5 as the highest in the data book. Just IMO