'gainst most hulk's orion will certainly win. savage would beat him but without motherbox orion would be completely savage and considerably stronger (most likely) than even superman. so even w/o af, it's still possible he could get some wins over hulk.
af needs to be channeled through his glider. for some reason, it seemed this thread was meant to be h2h. if he gets af, orion wins. h2h w/o mb, it's still pretty close, but hulk takes majority, methinks.