Mimi Tachikawa vs Vignette Valencia: who would win?

Vignette Valencia favored — Slight edge (~55%)

Mimi Tachikawa · Digimon · Base

Tier

10-B, up to 1-C

Attack Potency

Human Level, up to Complex Multiverse Level

Speed

Athletic Human, up to Immeasurable

Durability

Human Level, up to Complex Multiverse Level

Vignette Valencia · My Little Pony · Base

Tier

10-B

Attack Potency

Human Level

Speed

Average Human, up to Speed Of Light

Durability

Wall Level+

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