SevenShackles
Missa pro defunctis
i think Magneto would of became a hero from the positive influences from the kents, believing in the best of people i could see him being a role model to young meta-humans who would follow his example and use their powers in a responsible and productive manner. i dont think his powers would have evolved to the level they did in the marvel U but i still see him being above Dr.Polaris and being a founding member of the JL.
Superman would have survived the Holocaust and appear like he does in kingdom come with the gray hairs. i dont think he would of overcame the holocaust like some might think. his good nature and morals come from being raised by the kents. in this situation he would most likely follow the path magneto led but this time without the friendship of prof X in his later years. he would most likely view the human race as an outsider now lacking that guidance, maybe attempt to bring peace for a short while but at some point the hatred would end up reflecting on all of humanity with the expection of a few[maybe] making him the biggest enemy to both the human and mutant population which would most likely end with him growing disgusted with the 'lower life forms' and going into space causing conflicts with such people as silver surfer, Terrax, the skrulls and the annihlation wave which might end with some viewing him as a hero while others view him as a monster.