Aegir vs Thanos (Ultimate Marvel): who would win?

Aegir favored — Slight edge (~55%)

Aegir · Percy Jackson · Base

Tier

HIGH 6-A, up to 5-B

Attack Potency

Multi-Continent Level, up to Planet Level

Speed

Unknown

Durability

Multi-Continent Level

Thanos (Ultimate Marvel) · Marvel · In Possession of the Cosmic Cube

Tier

HIGH 6-A

Attack Potency

Multi-Continent Level

Speed

Massively Hypersonic+

Durability

Mountain Level

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