Farnese de Vandimion vs Jayna: who would win?

Jayna favored — Slight edge (~55%)

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

Jayna · DC · Base

Tier
9-C, up to 5-A
Attack Potency
Street Level, up to Large Planet Level
Speed
Massively Ftl+
Durability
Below Average Human Level, up to Large Planet Level

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