Come to think of it, that set-up is not too far off from Wonder Girl's over in the Wonder Woman books. Wonder Girl had THREE squabbling suitors at one point - a cadet version of Steve Trevor, Bird-Boy (basically a male Harpy), and Merboy (exactly what he sounds like). So I wouldn't have been surprised if the Super-Lana/Clark/Lionel set-up existed, because it could be a sort of commentary on the WW comics of the time.