Alright, this is going to seem mildly out of place here but I'm not sure where else to put it. I wasn't around for a while in the beginning and then things in the thread began piling up and up and up and up. I was just going to let it go but the thread is still kicking so people must like to talk about this 
Therefore, I will try to address as many of the complaints as I can (well, the objective ones at least since as I've stated, things like the Flashbacks that people didn't like I really liked ). I apologize now if I skipped your question.
1. Adjusting to the atmosphere quickly
It seemed to me that Zod was the only one who actually adjusted to the atmosphere quickly. All of the other Kryotonians kept their equipment on which filtered out the problems Superman dealt with in the flashbacks. The only one who broke out was Zod, in which Superman told him how he dealt with it and Zod, being bred for combat, was able to learn how to control it quicker than a young Superman could.
2. Why were the bad guys released?
I assumed that the device that kept them in the black hole zone (or whatever it was called) was powered either by Krypton or needed refueling/repowering. When no one was around to refuel it, it shut down and released whatever was being held prisoner (Zod and company).
3. Why was Lois brought on the ship?
Leverage? That's my excuse.
4. Why terraform Earth and not...anywhere else?
You got me there. I'm just giving the movie the benefit of the doubt that for some reason, it had to be Earth. We saw the other planets that were terraformed (Zod visited a bunch to find Superman) and those places looked shitty and everyone was dead. I'm assuming Earth is different somehow.
EDIT: Wow, I feel kind of dumb. Thanks Big_Willie_Styles below, revenge is the perfect reason why Zod went with Earth instead of going somewhere else.
5. Why does it bother Superman so much to kill? It's a reboot so why do we assume he hates killing?
I think this was a better example for something I talked about earlier with someone (showing not telling). It's clear that Superman doesn't want to hurt things. He wants to not expose himself but he just can't help himself when trouble is around. I thought it was also clear he didn't want to hurt anyone cause the military kept shooting him and he kept not killing them for it. I thought this was one aspect that the movie demonstrated quite well.
6. Why did Superman visit a priest?
I assume based on his upbringing that his family was religious.
7. Why was Clark wandering the land?
He didn't want to stay in one place too long in case people figured out his secret. Every time he did something heroic, he had to leave and based on what we saw of him and the interviews Lois does, it's pretty safe to say that he does lots of heroic things.
8. Why not move the fight?
That wasn't exactly Superman's choice. The bad guys were the ones attacking, he was on defense. I suppose he could have flown away and hoped that Zod and company would chase him but he seemed pretty busy trying to not get his ass kicked by a bunch of aliens and/or stopping the ship/robot/whatever from terraforming Earth.
I can almost guarantee I've missed some (objective) complaints so I apologize now. I have been reading each response since the thread was created and only now have really had the time to jump in and comment on complaints. I don't know if you'll buy what I'm selling but these were my interpretations of the events.
Therefore, I will try to address as many of the complaints as I can (well, the objective ones at least since as I've stated, things like the Flashbacks that people didn't like I really liked ). I apologize now if I skipped your question.1. Adjusting to the atmosphere quickly
It seemed to me that Zod was the only one who actually adjusted to the atmosphere quickly. All of the other Kryotonians kept their equipment on which filtered out the problems Superman dealt with in the flashbacks. The only one who broke out was Zod, in which Superman told him how he dealt with it and Zod, being bred for combat, was able to learn how to control it quicker than a young Superman could.
2. Why were the bad guys released?
I assumed that the device that kept them in the black hole zone (or whatever it was called) was powered either by Krypton or needed refueling/repowering. When no one was around to refuel it, it shut down and released whatever was being held prisoner (Zod and company).
3. Why was Lois brought on the ship?
Leverage? That's my excuse.
4. Why terraform Earth and not...anywhere else?
You got me there. I'm just giving the movie the benefit of the doubt that for some reason, it had to be Earth. We saw the other planets that were terraformed (Zod visited a bunch to find Superman) and those places looked shitty and everyone was dead. I'm assuming Earth is different somehow.
EDIT: Wow, I feel kind of dumb. Thanks Big_Willie_Styles below, revenge is the perfect reason why Zod went with Earth instead of going somewhere else.
5. Why does it bother Superman so much to kill? It's a reboot so why do we assume he hates killing?
I think this was a better example for something I talked about earlier with someone (showing not telling). It's clear that Superman doesn't want to hurt things. He wants to not expose himself but he just can't help himself when trouble is around. I thought it was also clear he didn't want to hurt anyone cause the military kept shooting him and he kept not killing them for it. I thought this was one aspect that the movie demonstrated quite well.
6. Why did Superman visit a priest?
I assume based on his upbringing that his family was religious.
7. Why was Clark wandering the land?
He didn't want to stay in one place too long in case people figured out his secret. Every time he did something heroic, he had to leave and based on what we saw of him and the interviews Lois does, it's pretty safe to say that he does lots of heroic things.
8. Why not move the fight?
That wasn't exactly Superman's choice. The bad guys were the ones attacking, he was on defense. I suppose he could have flown away and hoped that Zod and company would chase him but he seemed pretty busy trying to not get his ass kicked by a bunch of aliens and/or stopping the ship/robot/whatever from terraforming Earth.
I can almost guarantee I've missed some (objective) complaints so I apologize now. I have been reading each response since the thread was created and only now have really had the time to jump in and comment on complaints. I don't know if you'll buy what I'm selling but these were my interpretations of the events.
