Ollerus vs Collectimus: who would win?

Collectimus favored — Slight edge (~55%)

Ollerus · Toaru Majutsu no Index · Base

Tier

5-B

Attack Potency

Planet Level

Speed

Sub-Relativistic, up to Ftl

Durability

Planet Level

Collectimus · Ben 10 · Base

Tier

5-B

Attack Potency

Planet Level

Speed

Massively Ftl+

Durability

Planet Level

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