Devil and God
No, really. But the Good Lord's brother killed them all.
And of course, Devil and God had a brother to brother rumble which (killed them both) made them the only two people in the world to survive blood and gore and missing two organs which their hearts were punctured with bullets and the weather changed to gold and green snake eyes in casinos in Underworld's Cello of Vinyl Octavia and Melody Scratch. And the earth left town saying BROTHERS KEEP FIGHTING ON! And Cain and Abel are getting bored now.
Ah, brotherly love.