Hakann vs Aero: who would win?

Hakann favored — Slight edge (~55%)

Hakann · Bionicle · Ultimate Piraka

Tier

6-C

Attack Potency

Island Level

Speed

Massively Hypersonic+, up to Relativistic

Durability

Island Level

Aero · Marvel · Base

Tier

6-C

Attack Potency

Island Level

Speed

Hypersonic

Durability

Island Level

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