Artakha vs Hariyama: who would win?

Hariyama favored — Slight edge (~55%)

Artakha · Bionicle · Base

Tier

6-C, up to HIGH 5-A

Attack Potency

Island Level, up to Brown Dwarf Level

Speed

Massively Hypersonic+, up to Relativistic

Durability

Island Level

Hariyama · Pokémon · Hariyama

Tier

6-C

Attack Potency

Island Level

Speed

Speed Of Light

Durability

Island Level

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