If you can't accept characters returning from the dead then comics isn't the medium for you. The only comics characters don't return in is the Ultimate Marvel universe. They've written themselves into a corner now that most of the X-Men, Avengers, etc. are dead....

The new52 introduced a Superman that isn't as perfect a hero as he once was. He's no longer the most experienced, still makes mistakes, and the right amount of raw power can mess Superman up. Not just kryptonite and magic, Superman's mind has been taken over, a rookie Shazam got the best of him, etc.... 

Without trying to find the exact issues and scenes check out the new animated Justice League War. It's the new origin for the League and gives every member a more youthful image and modern adaption. Don't watch it around kids though, I made the mistake and within minutes civilians were saying Wonder Woman dressed like a whore and the only time a man felt powerful was when he cross dressed as WW LMAO

~KL~