and did pretty well against Maggeddon IIRC, buying time for Superman to absorb the energy source....I think some people overrate mother boxes, but some under rate them as well, and the Astro Force hasn't been featured that often, but when it has, its a VERY impressive power....
I'd rate Orion as Superman's equal physically, slightly slower in combat speed, but not significantly. With the Harness or whatever has comparable or even potentially better flight speed.
Mother Box can open boom tubes, so there's teleportation, protect against all sorts of psychic and other threats, etc. Astro force is greater than Heat Vision IMO, and significantly more versatile. Orion has a weakness to Radion, Superman to Kryptonite, so similar there, but Orion may be more resistant to magic than Superman.
All in all, I think that makes Orion > Superman powerwise, but not overwhelmingly so, and the nature of the way he fights makes him go strength on strength with Superman, meaning their fights tend to be pretty even.
In terms of effectiveness, Orion has fewer appearances to lean on, so the Simonson run is a huge percentage of his overall showings, and he was VERY effective in that series, with fighting skill that was absurd at times.
Since you see Orion as below Supes, do you see him as a peer to Wonder Woman? If so, how do you reconcile the King Superman story, when only Orion could stand up to him at all, among others.....he was clearly out of Wonder Woman's league during their shared stint in the JLA