Bjorn vs Farnese de Vandimion: who would win?

Bjorn favored — Slight edge (~55%)

Bjorn · Vinland Saga · Base

Tier
9-C, up to 9-B
Attack Potency
Street Level, up to Wall Level
Speed
Unknown
Durability
Street Level, up to Wall Level

Farnese de Vandimion · Berserk · Base

Tier
9-C, up to HIGH 7-A
Attack Potency
Street Level, up to Large Mountain Level
Speed
Peak Human, up to Speed Of Light
Durability
Human Level

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