Fun is a promising word.

IMHO I felt the problem with the reboot is it lost the element that made the first two films so successful. They were fun!

I don't think the Superman franchise will ever be Batman or Iron Man. Superman is best as a light-hearted adventure. In the first film, Luthor was not a bitter schemer as in Singer's reboot but really played as a complete buffoon with an absurdly delicious plan to sink California. And while Superman II was a little darker, it still focused on adventure and humor. The last film had none of that.

The next step is to hire the right director. It shouldn't be someone looking to make their name by creating something new and edgy. You need an experienced hand at the helm to effectively pull this off. I'd give my suggestion, but I'm sure people would think I was nuts.