Man of Steel made a very good summer great for me. I was as blown away in that theater as Pa Kent was during his dramatic exit. It had a very large amount of action, and I have to imagine that the fight scenes were in response to the previous films containing little of the sort. The cast did a great job, the aesthetics were phenomenal, and I really felt like it hit all of the Superman that SMIII didn't cover, much as I also dug that movie. A nice complement even if unintentional.
Watching it later on with different people and alone, the only gripe I have is that some of the dialogue between characters feels hollow. Michael Shannon is a good actor, but for some reason I think he had some of the weakest delivery.
BvS is really close despite me initially being too put off to see it until about 8 months after it came out. The only real knock I have is that Superman is melancholy almost entirely before his death. That has a different, imo less compelling effect than Emma Stone dying at the end of Amazing Spider-Man 2. It feels like "life sucks then you die." Between that and the Justice League commercial they stuck into the movie with no subtlety, I have to place it 2nd. 5th overall for movies featuring Superman.
The world engine wouldn't terra form the sun, and if it did compromise their powers through the atmosphere it would still be preferable to living on regular earth.