Superman wins. Decisively . 7/10.
Don't know if I would say .7/10 is decisive or do you mean he only wins 7% of the time but when he does, it's overwhelming?
But for an honest answer.
Ravenous, wasn't that guy like a solid class 100 or something but that's about it?
Blastaar, Thing lvl with decent energy blasts?
Terminus varies but he's "generally" a team level threat.
Terminus seems like the float or stride forth kind of guy more so than a mobile, flying all over the place kind of guy.
I don't "think" either Blastaar or Ravenous can fly at all.
Give it to team DC based on mobility if nothing else.