Killer Frost (Crystal Frost) vs Byakuya Togami: who would win?

Killer Frost (Crystal Frost) favored — Slight edge (~55%)

Killer Frost (Crystal Frost) · DC · Base

Tier
HIGH 7-C
Attack Potency
Large Town Level
Speed
Massively Ftl+
Durability
Small Building Level

Byakuya Togami · Danganronpa · Base

Tier
HIGH 7-C
Attack Potency
Large Town Level
Speed
Superhuman, up to Speed Of Light
Durability
Small Building Level+

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