Rudol von Stroheim vs Gaku: who would win?

Too close to call

Rudol von Stroheim · JoJo's Bizarre Adventure · Base

Tier
HIGH 8-C
Attack Potency
Large Building Level
Speed
Hypersonic+, up to Massively Ftl
Durability
Large Building Level

Gaku · Sakamoto Days · Base

Tier
HIGH 8-C
Attack Potency
Large Building Level
Speed
Hypersonic+
Durability
Large Building Level

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