I think it also time to make a revision of Steel's most notable rogues gallery:
I remember..
Hazard and his blakc op team
Dr. Villian.
Skorpio.
White Bunny.
Rift (but that was more a multiverse menace)
Atlas (the one from Kirby's First Issue).
Crash, his brother (Nat's father)...
and several Superman rogues than also opposed to John Henry, such as Lex Luthor, Brainiac, Doomsday and Manchester Black.