There's a misconception with the Celestials in Marvel Comics: they're often thought to be the beings that created the universe, but this isn't really the case. Instead, these beings seized authority over various parts of the Marvel universe, acting as judges simply because they have the might to do so.
Every Celestial fills a particular role, and carries it out for millions of years. They're humanoid beings with powers that are impossible to gauge, but we're going to try and rank their strength anyway. As each Celestial in the comics is basically the same, we’re including those characters who have been termed as such in separate universes, like the MCU. This also means Celestials who are 100-percent exactly the same haven’t been included, and only the powerful ones of similar anatomy have been chosen.
10 Gamiel the Manipulator
While almost all the Celestials could be considered around the same power level, there’s no question that Gamiel is the weakest out of these beings. He has the usual Celestial powers, but is the youngest of his species. As a result, he was assigned to watch over Earth.
Unlike the other Celestials, Gamiel doesn’t have the same towering stature. Instead, Gamiel’s size is roughly equivalent to the Hulk, which is very small for a Celestial. It might sound like he’s not that powerful, but you should recall that he’s a Celestial, and any other being will get destroyed by him. He got his title “the Manipulator” by causing the four-million-year war between the Skrulls and the Kree.
Star-Lord never got to unleash his full powers when they were activated in Guardians of the Galaxy Vol. 2, but it was a testament to how powerful he was that he brought Ego to a stalemate (although he did have help).
He showed the ability to manipulate energy out of nothing, and could make it do whatever he wanted. Star-Lord also displayed powers of shapeshifting and power summoning, when he turned himself into an enormous Pac-Man. He most likely would’ve have the same powers as Ego, but we’ll never know. As his powers didn’t last too long, he can’t be placed higher up in this list.
8 Phoenix Force
The Phoenix Force’s nature keeps changing from one story to another, but it is accepted as being associated with cosmic powers, which qualifies it as a Celestial in many iterations. As the Phoenix Force’s most powerful versions are far ahead of Celestials, we’ll consider the Jean Grey version here.
This one’s power was such that she could wipe mutants and people alike from existence. Jean’s telepathy and telekinetic abilities combined with the Phoenix Force’s destructive powers, meaning that nothing (besides other Celestial beings) could harm her in the slightest. She did go up against a Celestial in this form, only to lose. But this version of the Phoenix Force is still powerful enough to earn its place among the other Celestials.
Who was the Celestial the Phoenix Force lost to? That would be Zgreb the Aspirant. This Celestial was also known as “The Fallen”, a deranged being searching for his lover and not caring about any kind of destruction he left in his wake.
Zgreb was powerful enough to fight alone against the Ancient Avengers (which included Odin), and it was only the combined efforts of these beings that cast him away. He returned millennia later, even more powerful, and again only lost because of the new Avengers having to pull out all the stops.
This Celestial oversaw the planet Viscardi for twelve billion years, and only moved once the planet’s inhabitants pleaded with him to allow them to explore the outside universe. In return, Godhead punished the Viscardi race by creating a Black Vortex, whose power was such that only the Viscardi’s leader was left.
There was no closure or reason to any of this, as Godhead departed the planet silently once there was no more point for him to stay there. It’s frightening to think that this was his one notable act in all that time. We don’t know how he’d fare against other Celestials, though.
5 Eson the Searcher
The comic version of this Celestial was powerful, but he was also killed, making him one of the few Celestials to be truly taken down. However, we’ll be judging the Marvel Cinematic Universe version of this character, since Marvel deemed him significant enough to be the only comic book Celestial to show up on film.
Along with having the powers of a Celestial, he was also unstoppable due to having possession of the Power Stone. The Collector showed the Guardians of the Galaxy a hologram where Eson struck the ground with his scepter, effortlessly obliterating a whole race of beings. It’s still worth mentioning that he died in the MCU as well, which means he wasn’t the strongest Celestial we’ve seen.
4 Exitar the Executioner
He’s been given the title of Executioner due to his role of destroying worlds the other Celestials have deemed unworthy. Exitar isn’t even a single entity, it’s a line of Celestials who take up the mantle of Exitar should the previous one die.
Although an Exitar was killed by Sue Storm, the Executioner still ranks highly due to being functionally immortal (another Exitar arrives on the scene when the former one is eliminated). It appeared as if Thor’s hammer was the one thing that could kill an Exitar definitively, but this still doesn’t make him drop lower in rank. After all, it has been confirmed that he’s more powerful than Odin, Galactus, and the Beyonder.
Tiamut has the richest history out of all other Celestials shown in the Marvel universe. This expands to so many stories that listing them all here would be pointless, but the easiest indication of his enormous powers is that Galactus --of all beings-- is afraid of him.
To put things in context, Galactus considers Thanos to be equivalent to Hulk's assessment of Loki: “Puny god.” A being that can strike fear in Galactus, then, is something that should never be messed with. Tiamut was also a being that Uatu the Watcher couldn’t see, which is supposed to be an impossibility.
2 One Above All
This Celestial is the leader of every other member of his race. He doesn't tend to do much, as letting his imposing legacy do the talking tends to be ample. The One Above All has rarely been encountered, and on the occasions he is, he doesn’t respond with much other than show the person in question the answer they desire.
It’s accepted, though, that he can wipe out anyone he wants to if they were to engage him in a fight. He’s been seen teleporting characters as powerful as Thor away in a second’s notice, and the One Above All was used to rebirth all the Celestials when they had been killed.
1 Ego The Living Planet
While Ego did lose his life to the Guardians of the Galaxy, he’s the one with most known feats out of all the Celestials. He also only lost because the Guardians outnumbered him and had to go for his weak spot, rather than beat him fair and square.
Ego had the power to assimilate full worlds into himself. He could have remade everything in the universe the way he wanted – with his planet being proof of what he was capable of. He seemed to be as old as time itself, and had visited the farthest reaches of space. It’s unlikely he would’ve even been affected by Thanos’ snap, considering the scale of his powers.