Balrog (The Lord of the Rings Films) vs Byakuya Togami: who would win?

Balrog (The Lord of the Rings Films) favored — Slight edge (~55%)

Balrog (The Lord of the Rings Films) · Lord of the Rings · During Battle with Gandalf

Tier
HIGH 7-C
Attack Potency
Large Town Level
Speed
Hypersonic, up to Immeasurable
Durability
City Block Level, up to Town 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.