Prolly Marvell, but this Thanos knocked around Thor,Thing,Iron Man,Classic Vision Beast and Scarlett Witch, did well against Afro Magus who had the soul gem and beat classic Drax that destroyed stars and planets with his strentgh and energy power.
Thanos tells lord marvell he is going to destroy the last flower on a planet and makes him cry over it... Then leaves..
__________________ Quotes from Hia8:
"I claimed that the science is sometimes faulty."
"You don't understand. This is fiction. That means none of this stuff really happened."
"There is no writer to purposely ignore a character's natural ability just because it suits the story."
"in some cases because the writer knows that Character A will dominate Character B easily and refuses to allow this to happen for the sake of the story."