Phoenix (Kamen Rider) vs Sonic the Hedgehog (Archie Pre-Genesis Wave): who would win?

Phoenix (Kamen Rider) favored — Slight edge (~55%)

Phoenix (Kamen Rider) · Kamen Rider · Base

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Ftl

Durability

Complex Multiverse Level

Sonic the Hedgehog (Archie Pre-Genesis Wave) · Sonic · Super Sonic

Tier

1-C

Attack Potency

Complex Multiverse Level

Speed

Supersonic, up to Immeasurable

Durability

Complex Multiverse Level

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