Mark 12 Techadorian vs Kamen Rider Delta: who would win?

Too close to call

Mark 12 Techadorian · Ben 10 · Base

Tier: HIGH 7-C
Attack Potency: Large Town Level
Speed: Unknown
Durability: Unknown

Kamen Rider Delta · Kamen Rider · Kamen Rider Delta

Tier: 7-C
Attack Potency: Town Level+
Speed: Relativistic+, up to Speed Of Light
Durability: Town Level+

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