Sister Ivry vs Gaea: who would win?

Too close to call

Sister Ivry · Edens Zero · Base

Tier

5-B, up to 5-A

Attack Potency

Planet Level+, up to Large Planet Level

Speed

High Hypersonic, up to Massively Hypersonic+

Durability

Planet Level+, up to Large Planet Level

Gaea · Percy Jackson · True Form

Tier

5-B, up to HIGH 4-C

Attack Potency

Planet Level, up to Large Star Level

Speed

Nigh-Omnipresent

Durability

Planet Level, up to Large Star Level

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