User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-184.77.255.73-20120506183558

Death is the King.

Death > God > Michael > Lucifer > Godstiel > Raphael > Gabriel > Jesse > Eve > Dick Roman > Crowley

With that said, Crowley'd give Dick a good fight.

And yes, Leviathans are older than Angels; most likely even Michael. That doesn't make them more powerful. Just look at Jesse Turner, the Anti-Christ, he's fairly "young" and he's one of the most powerful beings in Creation.