An easy way for DC to finally have some credibility with their live action movies would be to have the people from all their animated movies make them. DC animated movies are top notch. DC live movies are usually a solid mediocre(recent Batman franchise being the only exception). Look at Marvel, they have it backwards, their animated movies are weak but their live movies are fantastic! It's like both groups said "hey look, we'll do a good job with this style, you do a good job with that style" and just gave up on the other.
Point #2: If Superman has his powers from birth and stands out from normal Kryptonians then why would anyone care about Zod or the others? They aren't using super suits like the first GI Joe movie are they?!