Supes is interesting if he's put up against a real threat. They need to get away from having Lex Luthor come up with some scheme and do something like having Darkseid invade earth. That would be an awesome movie, because then he wouldn't have to hold back against someone who can match him, where as with someone like Lex he just ends up giving him to the police. But yeah, the problem is placing him in a situation where the audience feels like he could actually lose, and that isn't easy.