Index Librorum Prohibitorum vs Tron Bonne: who would win?

Tron Bonne favored — Slight edge (~55%)

Index Librorum Prohibitorum · Toaru Majutsu no Index · Base

Tier

10-B, up to 6-B

Attack Potency

Human Level, up to Country Level

Speed

Average Human, up to Sub-Relativistic

Durability

Country Level

Tron Bonne · Mega Man · Base

Tier

10-B, up to LOW 5-B

Attack Potency

Human Level, up to Small Planet Level

Speed

Peak Human, up to Ftl+

Durability

Small Planet Level

A heuristic estimate from normalized VS Battles Wiki stats: tier, attack potency, speed and durability.