Kumara vs Yakumo: who would win?

Too close to call

Kumara · Tensei Shitara Slime Datta Ken · Awakened Demon Lord

Tier

6-A, up to 3-A

Attack Potency

Continent Level, up to Universe Level

Speed

Massively Hypersonic, up to Massively Ftl

Durability

Continent Level, up to Universe Level

Yakumo · Yu Yu Hakusho · Meikai God Form

Tier

6-A, up to 5-B

Attack Potency

Continent Level, up to Planet Level

Speed

Massively Hypersonic

Durability

Continent Level

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