R-System vs Delphinus Mii: who would win?

Delphinus Mii favored — Slight edge (~55%)

R-System · Fairy Tail · Base

Tier

HIGH 6-A

Attack Potency

Multi-Continent Level

Speed

Unknown

Durability

Island Level

Delphinus Mii · Saint Seiya · Post Training with Marin

Tier

HIGH 6-A

Attack Potency

Multi-Continent Level

Speed

Transonic, up to High Hypersonic

Durability

Multi-Continent Level

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