Godzilla (MonsterVerse) vs Set (Riordan): who would win?

Set (Riordan) favored — Slight edge (~55%)

Godzilla (MonsterVerse) · Godzilla · Burning

Tier

HIGH 6-B, up to 4-B

Attack Potency

Large Country Level, up to Solar System Level

Speed

Subsonic+, up to High Hypersonic+

Durability

Large Country Level, up to Solar System Level

Set (Riordan) · Percy Jackson · Base

Tier

HIGH 6-B, up to HIGH 6-A

Attack Potency

Large Country Level, up to Multi-Continent Level

Speed

High Hypersonic+

Durability

Large Country Level, up to Multi-Continent Level

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