Demon Lord Kano.
Queen Goddess Tanya.
Emmet (He was still using immortality last I checked so.)
Damon.
Milo.
Nick.
Fliacia.
Sandra.
Ikon.
Amber?
I'm fairly confident in the top 2. The rest of the list doesn't have any order and is just guesses of who could be on there. I'm not how much power Amber got, didn't Milo royally fuck her a while ago when he and Sandra blamed her for something, missing souls or something? I really don't know if she got her powers back, or only a percentage of it what. But she's usually pretty powerful so.
Also I'm sure I'm forgetting a crap load of names.
You know, if Chulance was the source of power behind the MRD super prison, he should probably be in there to.
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Owned consoles - Playstation 2, Playstation 3, Playstation 4.
Previously owned - Playstation, Nintendo 64, XBOX, XBOX 360.