I thought the fight sequences were ridiculous, which is a problem with the nature of Superman. He's basically immortal, and when his enemies are the same, it's pointless to punch and throw eachother around. Also the amount of destruction was a bit ridiculous. I thought the early part of the movie before he cleaned up and donned the suit was much better and more interesting. They should have played the emotional angle more, focusing on his struggle to fit in and to protect humanity at the same time.
Though I guess that would probably stray too far from the comics and piss off the comic fans.