Titan (Comics) vs Billy Kid: who would win?

Too close to call

Titan (Comics) · Invincible · Transformed

Tier
8-C
Attack Potency
Building Level
Speed
Superhuman, up to Relativistic
Durability
Building Level

Billy Kid · Zenless Zone Zero · Base

Tier
8-C
Attack Potency
Building Level
Speed
Superhuman, up to Massively Hypersonic
Durability
Building Level

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