The Champion of the Universe (Marvel Tōkon) vs Ken Kaneki: who would win?

Too close to call

The Champion of the Universe (Marvel Tōkon) · Marvel · Base

Tier
7-C, up to 4-C
Attack Potency
Town Level, up to Star Level
Speed
Supersonic+
Durability
Star Level

Ken Kaneki · Tokyo Ghoul · Post-Rose Arc

Tier
7-C, up to HIGH 7-C
Attack Potency
Large Town Level, up to Town Level+
Speed
Massively Hypersonic+, up to Sub-Relativistic
Durability
Large Town Level, up to Town Level+

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