I dunno. Thanos was able to piss off Galactus by blasting him hundreds/thousands of feet and destroying his helmet, and IIRC he was capable of nearly solo'ing The Avengers.
__________________ ”You presume limits to my power. There are none.”
If you think the Ones are Universe busters then they beat base Thanos, I doubt it though. If you use Legends material we already see a One going at it AKA Abeloth and her best feat was destroying some City and I think shaking Coruscant but nothing what even someone like classic Drax can do AKA rip out stars and smash planets with their bare hands.
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."
Thanos' first appearance was beating classic Drax in one hit lol.
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."
__________________ "Happiness is a lie. Life is horror. The light is always dying all across the universe. The last star will flicker out someday, when it does, all that remains is shadow. And I will be its king!"'-Amahl Farouk
Any one who's a planet buster and FTL could more than likely solo the majority of Star Wars barring very few things.
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."
Back then Lt was implied to be weaker than the Mystical forces like the Vishanti, along with the other cosmics. That has been reversed in modern times.
__________________ "Vader's pulse and breathing were machine-regulated, so they could not quicken; but something in his chest became more electric around his meetings with the Emperor; he could not say how. A feeling of fullness, of power, of dark and demon mastery -- of secret lusts, unrestrained passion, wild submission -- all these things were in Vader's heart as he neared his Emperor. These things and more."