Jack the Ripper (Berserker) vs Saronia A. Irivika: who would win?

Jack the Ripper (Berserker) favored — Slight edge (~55%)

Jack the Ripper (Berserker) · Nasuverse · Base

Tier

9-C, up to HIGH 6-C

Attack Potency

Street Level, up to Large Island Level

Speed

Relativistic+, up to Ftl

Durability

Street Level, up to Large Island Level

Saronia A. Irivika · Toaru Majutsu no Index · Base

Tier

9-C, up to 9-B

Attack Potency

Street Level, up to Wall Level

Speed

Peak Human

Durability

Wall Level

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