Arabia Fats vs Kamen Rider Zolda: who would win?

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

Arabia Fats · JoJo's Bizarre Adventure · Base

Tier

10-B, up to HIGH 8-C

Attack Potency

Human Level, up to Large Building Level

Speed

Immobile, up to Speed Of Light

Durability

Human Level

Kamen Rider Zolda · Kamen Rider · Base

Tier

10-B, up to HIGH 7-C

Attack Potency

Human Level, up to Large Town Level

Speed

Average Human, up to Supersonic

Durability

Human Level, up to Large Town Level

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