1. Sarutobi Hiruzen: Known as the "Professor of Ninjutsu," Sarutobi Hiruzen is the third Hokage of Konoha and possesses exceptional skills in various ninja arts. He is highly proficient in ninjutsu, taijutsu, genjutsu, and intelligence. However, his power has declined with age.

2. Uchiha Itachi: Itachi is known as the "God of Sealing" due to his highest total ability score in the "Book of Shinobi." He excels in ninjutsu, genjutsu, intelligence, speed, and sealing.

3. Orochimaru: Orochimaru, one of Konoha's legendary three ninjas, is second only to a Kage in power. Though his comprehensive ability score is 70, he has perfect scores in genjutsu, ninjutsu, and sealing. Orochimaru's research in ninjutsu surpasses even the other legendary three ninjas, but he is no longer able to perform seals after having his hands sealed.

4. Yakushi Kabuto: Kabuto starts as a mid-level ninja but becomes a powerhouse later. He perfectly inherits Orochimaru's abilities and achieves Sage Mode. His sealing speed is rated as a perfect score in the "Book of Shinobi."

5. Hatake Kakashi: Kakashi, known as Copy Ninja Kakashi, is a prodigy and highly skilled due to the Sharingan given to him by Obito. His sealing abilities are rated as a perfect score. He is second only to Uchiha Itachi among the mentioned individuals. Naruto and Sasuke have lower sealing scores and cannot compare to the top contenders.