Sirenjaw vs Joseph Joestar: who would win?

Joseph Joestar favored — Slight edge (~55%)

Sirenjaw · Godzilla · Large Specimens

Tier

8-B

Attack Potency

City Block Level

Speed

Superhuman

Durability

City Block Level

Joseph Joestar · JoJo's Bizarre Adventure · Post-Training

Tier

8-B

Attack Potency

City Block Level

Speed

Massively Ftl

Durability

Large Building Level

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