Sub Energy vs Ota Murakami: who would win?

Ota Murakami favored — Slight edge (~55%)

Sub Energy · Ben 10 · Base

Tier
HIGH 6-A
Attack Potency
Multi-Continent Level
Speed
Immobile
Durability
Multi-Continent Level

Ota Murakami · Godzilla · Piloting Mechagodzilla/Kiryu

Tier
HIGH 6-A
Attack Potency
Multi-Continent Level
Speed
Superhuman
Durability
Multi-Continent Level

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