Kamen Rider G vs Lucifer Morningstar (Hazbin Hotel): who would win?

Too close to call

Kamen Rider G · Kamen Rider · Kamen Rider G

Tier
LOW 5-B, up to 1-C
Attack Potency
Small Planet Level, up to Complex Multiverse Level
Speed
Supersonic, up to Massively Ftl+
Durability
Small Planet Level, up to Complex Multiverse Level

Lucifer Morningstar (Hazbin Hotel) · Hazbin Hotel · Base

Tier
LOW 5-B, up to 5-B
Attack Potency
Small Planet Level, up to Planet Level+
Speed
Supersonic, up to Ftl
Durability
Small Planet Level, up to Planet Level+

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