Warbat vs Moonfish: who would win?

Warbat favored — Slight edge (~55%)

Warbat · Godzilla · Base

Tier

6-B, up to 4-B

Attack Potency

Country Level+, up to Solar System Level

Speed

High Hypersonic+

Durability

Country Level+, up to Solar System Level

Moonfish · My Hero Academia · Final War Arc

Tier

HIGH 6-B

Attack Potency

Large Country Level

Speed

Relativistic+

Durability

Multi-City Block Level, up to Large Country Level

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