User blog comment:B214/Question and Answers 2/@comment-25222726-20140610135656/@comment-1359322-20140610144013

It depends, Azazel probably is as strong as Sirzechs and the other Satans (Sirzechs and Ajuka is normal state). Michael is probably the same as Azazel. Lets see how strong he is, if he does fight in Volume 18.