User blog comment:ImperiexSeed/The oldest being, archangel or leviathan?/@comment-202.142.107.183-20140521061117/@comment-173.56.242.102-20140626213024

Michael could beat Dick Roman. Lucifer probably couldn't.

It's implied that Michael is many times stronger than Lucifer, and that the contest between them was really no contest. However, Lucifer was much younger than Michael, and they could both scatter a leviathan. Also, if a leviathan has a soul, than an archangel could roast them.