I believe the Fantastic Four vanquished a Celestial.
The entire Superman lineage, from Superman Pre-Crisis to Superman that live in the time-stream, to Supermen who are faster than a tachyon, to supermen who live in the 5th dimension, all the way to the Prime Superman. (And note that their power becomes greater with each successive generation, and not just power but intellect and what not. Plus new powers and senses).
Comeon!!!!
If the F4 can do in one Celestial, what do you think the ENTIRE Superman lineage would do?
I have read often on carious threads, that Superman Prime is
the strongest Superman, and that his strength comes from
having been in the sun for 15,000 years.
Now, 15,000 years is a long time, but the Celestials have been
around for millions, probably hundreds of millions, if not over a
billion, years. So their powers and experience is unsurpassed
by anyone in Marvel Universe, except Galactus, and maybe
the Watchers.
So I doubt that the Supermen can defeat him. He'll just destroy
the whole solar system if need be.
Their are 11 celestials if I'm counting it right. Here they are:
Arishem The Judge
Ziran The Tester
Jemiah The Analyzer
Eson The Searcher
Oneg The Prober
Nezarr The Calculator
Gammenon The Gatherer
The Great Renegade(Dreaming Celestial)
One Above All...
Never also mentions Hargen The Measurer and Tefral The Surveyor.
Ummmm, I think that's it. I know one of'em is dead, cause I remember a little bit back, Some of the Celestials combined their might and slayed one of their own because some kind of disagreement or breach of conduct, or they could've slayed another Celestial that I missed. Well other than that, any Celestial will win.