Galactic Federation Marines vs Fenghuang: who would win?

Too close to call

Galactic Federation Marines · Metroid · Galactic Federation Marines

Tier
8-C, up to 6-B
Attack Potency
Building Level, up to Country Level
Speed
Supersonic+, up to Sub-Relativistic
Durability
Building Level

Fenghuang · Kung Fu Panda · Base

Tier
8-C, up to HIGH 8-C
Attack Potency
Building Level, up to Large Building Level
Speed
Supersonic+
Durability
Building Level, up to Large Building Level

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