Griffith vs Zaneri: who would win?

Zaneri favored — Slight edge (~55%)

Griffith · Berserk · Incarnated Griffith / Femto

Tier
HIGH 7-A
Attack Potency
Large Mountain Level
Speed
Massively Hypersonic
Durability
Large Mountain Level

Zaneri · Nanatsu no Taizai · Base

Tier
HIGH 7-A
Attack Potency
Unknown
Speed
Sub-Relativistic
Durability
Unknown

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