Gojo Satoru has the most powerful students in jujutsu history. He also scores lower than the volleyball team manager from Haikyuu. This index explains why.
The expected top 3 by fan perception: Gojo Satoru, All Might, Kakashi Hatake. The actual top 3 by formula: Koro-sensei (9.70), Biscuit Krueger (8.74), Izumi Curtis (8.69). The formula weights curriculum design and availability most heavily — two dimensions where the most powerful characters systematically score near-zero. Gojo: 3.20. All Might: 4.23. Kakashi: 5.47. Iruka Umino, the chunin Academy teacher with no famous battles: 7.62.
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| Rank | Teacher | Score |
|---|---|---|
| #1 | Koro-sensei | 9.70 |
| #2 | Biscuit Krueger | 8.74 |
| #3 | Izumi Curtis | 8.69 |
| #4 | Wing | 8.57 |
| Rank | Teacher | Score |
|---|---|---|
| #5 | Coach Anzai | 8.15 |
| #7 | Might Guy | 7.87 |
| #9 | Iruka Umino | 7.62 |
| #13 | Genkai | 7.12 |
| Rank | Teacher | Score |
|---|---|---|
| #15 | Piccolo | 6.75 |
| #16 | Reborn | 6.51 |
| #19 | Jiraiya | 5.82 |
| Rank | Teacher | Score |
|---|---|---|
| #20 | Kakashi Hatake | 5.47 |
| #24 | All Might | 4.23 |
| #25 | Yami Sukehiro | 4.11 |
| Rank | Teacher | Score |
|---|---|---|
| #26 | Gojo Satoru | 3.20 |
| #27 | Shanks | 2.94 |
| #30 | Kamina | 2.06 |
The joke character turns out to have been doing the real work. Guy scores 10/10 on student survival, 8/10 on emotional intelligence (the Rock Lee recovery arc is one of the most attentive teacher moments in Naruto), and 9/10 on availability. Kakashi: 3/10 on equitable attention. The formula is not impressed by a Sharingan.
Iruka's 7.62 beats the combined average of Gojo (3.20), All Might (4.23), and Kakashi (5.47) — which is 4.30. He has no Sharingan, no Six Eyes, no One For All. He has 10/10 availability, 10/10 student survival, and 9/10 emotional intelligence. He is the first adult in Naruto who treats Naruto like a child. That is measurable. That is pedagogy.
Takeda's direct contribution to skill development is minimal (outcome delta: 2/10). He secures match schedules and finds coaches. But he scores 10/10 on availability, 10/10 on student survival, 9/10 on equitable attention. Gojo: imprisoned, no curriculum, extreme favoritism. Reliable presence for every student beats intermittent genius for one. That is the thesis of this entire index.
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Formula: CompetenceScore = (0.20 x CurriculumCoherence) + (0.20 x StudentSurvivalRate) + (0.18 x EmotionalIntelligence) + (0.17 x AvailabilityPresence) + (0.15 x StudentOutcomeDelta) + (0.10 x EquitableAttention)
All metrics scored 0-10 using a four-anchor rubric applied to canonical anime and manga source material. Scores reflect analyst judgment applied consistently to the defined rubric.