Baba Yaga vs Kūgo Ginjō: who would win?

Baba Yaga favored — Slight edge (~55%)

Baba Yaga · Dungeons & Dragons · Base

Tier

HIGH 6-A

Attack Potency

Multi-Continent Level

Speed

Relativistic+, up to Infinite

Durability

Multi-Continent Level

Kūgo Ginjō · Bleach · Lost Agent Arc

Tier

HIGH 6-A, up to 4-A

Attack Potency

Multi-Continent Level, up to Multi-Solar System Level

Speed

Massively Hypersonic

Durability

Multi-Continent Level, up to Multi-Solar System Level

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