Kamijou Touma vs Sonic the Hedgehog (Paramount): who would win?

Sonic the Hedgehog (Paramount) favored — Slight edge (~55%)

Kamijou Touma · Toaru Majutsu no Index · St. Germain

Tier

5-B

Attack Potency

Planet Level

Speed

Sub-Relativistic, up to Massively Ftl

Durability

Planet Level

Sonic the Hedgehog (Paramount) · Sonic · Super Sonic

Tier

5-B

Attack Potency

Planet Level

Speed

Massively Ftl+

Durability

Planet Level

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