Voted 36-40% Let me preface this by saying that I still enjoyed MoS, but it had some problems that kept it from being good to the level of Batman Begins or The Dark Knight.
* Problems with pacing made it hard to get into the film until Clark meets Lois at the Canadian tundra. The flashbacks got in the way a bit too much, to the degree that some of the characters in the present like Perry, Lois and Zod felt slightly underdeveloped.
* The script could have used polishing. All the interviews talked about this being a science fiction film about first contact with an alien race, but we don't see that pivotal scene where Jonathan and Martha come across Kal El's ship and make contact. This scene missing dampens the gravity of Jonathan's extreme decisions to keep Clark's powers a secret as we aren't able to see the bewilderment and fear of discovering an alien through his eyes. We are only told about it.
* The cinematography was off I thought. The zooms and hand held documentary camera angles might have worked in some scenes, but they did not mesh at all with others, like the Kryptonian scenes at the start. Personally I thought they missed an opportunity to show the opening Kryptonian scenes with a classical sharp and steady camera, no tilts, no dollies, few pans. Showing that this is a civilisation which is overly controlled, nothing happens which is not planned and expected and hence nothing new or extraordinary can happen. That was the point of Jor-El stealing the codex.
Then when we get to Earth the camera and editing style should change to show the juxtaposition between our two worlds. Earth's frenetic and chaotic pace of life should have been felt through the cinematography and it should have felt different to the way they shot Krypton.
* The third act fizzles out after Kal El destroys the Black Zero. There's an old screenwriting device that is used over and over and that's not because screenwriters are lazy, it's because it works and it works well. It's called the "Ticking clock". MoS had this with the world engine and the Black Zero. But then both of those world and city threatening plot devices are destroyed 20 minutes before the credits roll and we are presented with the showdown between Zod and Superman. But even though the stakes are still high because Zod has the power to kill millions, we don't feel the immediacy of those stakes because they aren't seen, we don't have the ticking clock and because of this the audience loses a portion of their interest and instead just watch the pretty cgi and demolition shots simply hoping that Superman will beat this guy because he's bad. But wouldn't it be more exciting if Superman had to beat that guy because the city was about to be crushed by the black zero, or the world's atmosphere was about to become poisonous for humans?