Kamen Rider Birth (Akira Date) vs Britney: who would win?

Kamen Rider Birth (Akira Date) favored — Slight edge (~55%)

Kamen Rider Birth (Akira Date) · Kamen Rider · Kamen Rider Birth Prototype

Tier

5-B

Attack Potency

Planet Level

Speed

Ftl

Durability

Planet Level

Britney · Edens Zero · Base

Tier

5-B

Attack Potency

Planet Level+

Speed

High Hypersonic

Durability

Unknown

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