Gerard Valkyrie vs Thor (Riordanverse): who would win?

Gerard Valkyrie favored — Slight edge (~55%)

Gerard Valkyrie · Bleach · God Size

Tier

5-C, up to 4-A

Attack Potency

Moon Level+, up to Multi-Solar System Level

Speed

Massively Hypersonic, up to Relativistic

Durability

Moon Level+, up to Multi-Solar System Level

Thor (Riordanverse) · Percy Jackson · Base

Tier

5-C

Attack Potency

Moon Level

Speed

Unknown

Durability

Moon Level

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