Pretty sure Zemo is only listed as a high herald on the tiers list.
Given the tiers, either Prime or King Thor.
EDIT: Here's the list:
Tier 4 - Trans. Tier (Sub-Skyfather)
Amazo, Appolyon, The Asgardian Destroyer, Black Racer, Blackheart, Blaze, Count Abyss, Death Urge, Despero, The Doctor, Doomsday (H/P), Dr. Fate, Eclipso, Elders of the Universe (minus Ego), Fernus, Gog, Gray Man, High Evolutionary, Ion (current), Jenny Quantum, The Keeper, King Thor, Magus (original), Mangog, Mongul I (Pre Crisis), Nightmare, Onimar Synn, Onslaught, Queen of Fables, Resurrection Man 1 Million, Sentinel (Alan Scott), Silver Age Kryptonians/Daxamites, Solusandra, Stayne, Strange Visitor, Sun Eater, Superboy Prime, Superman 1 Million, Takion, Thanos, Tyrant (powered down), Validus
Originally posted by eaebiakuya
Wait, isent Tyrant in the list ? He is not stronger than Thanos...?And wait again...
this includes Superman ?
Tyrant is well above Trans. Being able to give Galactus a fight anytime, and anywhere would suggest that he was well within the high Sky Father range, to perhaps low Abstract range.
Eh. I wouldn't compare Odin's fight with Big G to Tyrant's given the nature of Tyrant's powers (turning Galactus's tech against him, then using it to siphon off his energy). I agree he's above trans, but high end skyfather to low end abstract's a hell of a stretch given some of the other guys in that range (Odin, Monarch, RKT, Kingdom Gog, etc.)