Guts vs Dagger: who would win?

Too close to call

Guts · Berserk · Black Swordsman

Tier
8-A
Attack Potency
Multi-City Block Level
Speed
Hypersonic, up to Massively Hypersonic+
Durability
Multi-City Block Level

Dagger · Marvel · Base

Tier
8-A
Attack Potency
Multi-City Block
Speed
Hypersonic, up to Speed Of Light
Durability
Multi-City Block

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