Mar-vell and Genis-vell would rock the shiznits out of the Captain Marvel family and Black Adam. Hell, Genis-vell could do it by himself. I'm not completely sure as to how strong Mar-vell was, but he was Thanos' arch-enemy, right? Did they ever throw down in brawls? Cuz if Mar-vell did and held his own, he could take out the Marvel family and Black Adam by himself as well.
Was Thanos powered up after the Infinity Gauntlet saga? Or was it recent? I've seen threads where people almost unanimously agree he could beat the snot out of Superman. I mean, if Mar-vell and the Avengers could take him out before he died and was resurrected for the Infinity Gauntlet, where did he get this massive upgrade of powers?