Tsuchimikado Motoharu vs Quicksilver (Marvel Comics): who would win?

Quicksilver (Marvel Comics) favored — Slight edge (~55%)

Tsuchimikado Motoharu · Toaru Majutsu no Index · Base

Tier
9-A
Attack Potency
Small Building Level
Speed
Peak Human, up to Subsonic
Durability
Building Level

Quicksilver (Marvel Comics) · Marvel · Base

Tier
9-A
Attack Potency
Small Building Level
Speed
Ftl, up to Infinite
Durability
Small Building Level

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