Originally posted by abhilegendThanos has shields of his own and he isn't just some shield that will hit back. Thanos has the durability to allow Thor to hit him whereas Superman was rocked by him.
Superman would beat the shit out of Thanos in such a scenario. With mjolnir he oneshotted Krona's shield when JLA/Avengers combined couldn't scratch the forcefield of a less powerful Krona.