... pick up Thor's hammer?

do you mean that if they are more powerful they can overcome the enchantment? good question. in the Gods on Earth story arc where thor moved asgard to earth and became a king over all earth, he had lost the ability to wield mjolnir. he killed jake olsen and after that couldnt pick it up again. later in his life, his son Magni found it and was able to wield it, and challenged his father to show he was still worthy. thor, with the full power of the odinforce, so equal in power to odin, was able to levitate the hammer over to him, but before he was able to put his hands on it they were interrupted. later, thor sort of repented, and was once again worthy, but the writer left it open as to whether when he was levitating it to him he would have been able to lift it without the power of the OF. i personally think that at that particular moment he was still unworthy, but he could command it with his power. so if he was equal in power to odin, i believe that characters greater in power to odin would be able to wield mjolnir. maybe not wield, but if galactus put mjolnir in his hand i dont think it would come crashing to the ground.

" do you mean that if they are more powerful they can overcome the enchantment? good question. in the Gods on Earth story arc where thor moved asgard to earth and became a king over all earth, he had lost the ability to wield mjolnir. he killed jake olsen and after that couldnt pick it up again. later in his life, his son Magni found it and was able to wield it, and challenged his father to show he was still worthy. thor, with the full power of the odinforce, so equal in power to odin, was able to levitate the hammer over to him, but before he was able to put his hands on it they were interrupted. later, thor sort of repented, and was once again worthy, but the writer left it open as to whether when he was levitating it to him he would have been able to lift it without the power of the OF. i personally think that at that particular moment he was still unworthy, but he could command it with his power. so if he was equal in power to odin, i believe that characters greater in power to odin would be able to wield mjolnir. maybe not wield, but if galactus put mjolnir in his hand i dont think it would come crashing to the ground. "

he lost the ability cause he was no longer worthy, so i dont think its about power, i think its about being selfless and willingness to help others who cant help themselves which is why steve rogers has been able to lift it !!!

no if they are unworthy

Yes because you can't say someone like the LT wouldn't be able to lift it