Scorpion has become the new Venom, do not know the whole story but Brock, the original Venom was Killed off, and because Scorpion hates Spiderman, he merged with him and looks awesome with combined strength and power.

Superman is dependent on the yellow sun for his power? So he has his limitations.

Also it must be DC writers who made him win against the Hulk. There is one comic where Superman beats Thor and that would not be possible because magic is one of his weaknesses and Thor's hammer is mystic. He would kill Superman with ease.