E-105 Zeta vs Malzahar: who would win?

Malzahar favored — Slight edge (~55%)

E-105 Zeta · Sonic · Base

Tier
4-B
Attack Potency
Solar System Level
Speed
Immobile, up to Massively Ftl
Durability
Solar System Level

Malzahar · League of Legends · Battle Boss Malzahar

Tier
4-B
Attack Potency
Solar System Level
Speed
Subsonic
Durability
Solar System Level

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