Sif vs Ninian: who would win?

Too close to call

Sif · Marvel · Base

Tier

LOW 7-C, up to 7-A

Attack Potency

Small Town Level, up to Mountain Level

Speed

Superhuman, up to Subsonic

Durability

Small Town Level

Ninian · Fire Emblem · Dragon Form

Tier

LOW 7-C, up to 7-B

Attack Potency

Small Town Level, up to City Level

Speed

Superhuman, up to Massively Hypersonic

Durability

Small Town Level, up to City Level

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