Banyue vs Chachakaka: who would win?

Chachakaka favored — Slight edge (~55%)

Banyue · Zenless Zone Zero · Base

Tier
8-C, up to 7-C
Attack Potency
Building Level, up to Town Level
Speed
Hypersonic+
Durability
Building Level

Chachakaka · BlazBlue · Base

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

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