Let me explain. This list is not based on the game power of the characters, but on their descriptions from the lore. It has no game value and simply distributes the characters according to their real abilities. This is my personal opinion, and it is based only on my study of the stories of champions.
This is my own idea and I do not know if anyone has done this before me. I wanted to do it, and I did it.
Godslayer and the Darkness theirselves. Literally the strongest creatures of the Realm, to whom neither the gods nor the greatest warriors means nothing.
Gods. Creatures with divine nature and abilities. Immortal (based on their cues), almost almighty entities.
God's chosen. The abilities of these guys are bestowed upon them by the gods and godlike entities, and have the corresponding power.
Spawn of the Abyss. Creatures with Abyss powers, that can control time, life and death, summon demonic powers and other Abyss stuff
Powerful and mighty entities, made by humans, born by nature or got their powers from it
Mages. People who have mastered mystical abilities and use them in battle
Skilled warriors. Fighters who have mastered their combat skills to perfection, have vast experience and a wide range of capabilities, and therefore pose a great threat
Other creatures. Various entities inhabiting the Realm and participating in the war for some reason
The soldiers. Members of the regular army, or former soldiers who do not have special superpowers. Experienced killers.
Ordinary residents of the Realm. Not the warriors who were drawn into the conflict. Huntress and engineer.