User blog comment:B214/High School DxD DX.4 discussion/@comment-39.51.176.224-20170906050225/@comment-26926813-20171019125604

He maybe never stated but, I remember the feats. For example Loki casually block full-powered attack from 2 Satan-class Fallen Angel. And according to Volume 4, Azazel at least not weaker than Serafall.

And I could said the same. It was never stated that current Maou a above previous (except Sirzechs and Ajuka). For me every single who stated as Maou-class a pretty much on the same league, but someone have abilities that could counter other, or have an great battle-skill experience.