Each Faction has their own 'versions of classes'.
But every single one shares first four classes.
Low-Class =Two-Winged Angel/Fallen Angel/Devil
Mid-Class= Four-Winged Angel/Fallen Angel/Devil
High-Class = Six-Winged Angel/Fallen Angel/Devil
Ultra-Class = Eight-Winged Angel/Fallen Angel [Class exclusive to Angels]
Ultimate-Class = Ten-Winged Angel/Fallen Angel/Devil
Classes forwards are exclusive to other pantheons
Satan/Seraph/Deity-Class = Twelve-Winged Angel/Fallen Angel/Devil/other factions
Super-Devil/Seraph/Chief Deity= Fourteen-Winged Angel/Fallen Angel/Devil and Chief Gods of other factions.
[Heavenly-Dragons are limits of Super-Devil Class, strongest ones in the Class.]
God-King-Class = Rhongomyniad/God of the Bible, Indra and Shiva.
God of the Bible, Indra and Shiva are sometimes referred to as The Great Trio of Strongest Gods.
Dragon God-Class : Ophis/Great Red/Trihexa
ExE Gods? = ????
This is my personal list of TOP 10 Strongest in DXD [Draconic Deus].
1st - Ophis/Great Red/Trihexa
2nd- Shiva, the God of Destruction
3rd - Rhongomyniad, the God of the Bible
4th - Indra, King of the Gods
5th -Draig and Albion, the Heavenly Dragons
6th - Crom Cruach, an Evil Dragon who reached Heavenly Dragon-Class powers.
7th- Sirzechs Lucifer and Ajuka Beelzebub, [Maybe Rizevim Lucifer too? He is Super-Devil too.]
8th - Hades, God of Death
9th - [Surprise]
10th - [Suprise] [Fenrir? ]
This list is purely made from what I have seen people ranking them.
I honestly don't know much about Crom Cruach, I did not read LN. My info comes from Anime/Mange/Wiki/Fanfiction. And a bit of LN Volumes I have been searching around.
I'll be writing with scraps I can find anyway.
Anyway, this list is [Future] since some characters are not strong enough, or some dead/sealed like Albion/Draig.
But it's scary comparison. It's going to be updated once MC starts mass producing [Super-Seraph Class Angels]
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