Well, I just saw Superman Returns last night and I have to say it was definitely a good movie - but I wouldn't call it spectacular. I found it was a little light on action, and I didn't care for the ending much. There were a few plot issues as well, but hey, what movie isn't without those nowadays... 😉
At the end of the day, I liked Batman Begins and X-Men III more than Superman Returns (and I enjoyed X-2 and X-Men beter than X-Men III for the record), but it probably comes down to personal preference. For me, Superman is just too powerful as a superhero. It really takes the fun out of things, and you know that he's always going to win, no matter what the challenge. As a result, there was a continual lack of suspense for me while I was watching it.
A good movie though, and Singer did a fine job IMO. I just wasn't blown away, that's all. Perhaps I'm desensitized, but there were no jaw-dropping, tell-your-friends-about-it scenes for me...
As I've said elsewhere though, all the above being said, Pirates of the Caribbean will crush it in the box office this summer. Mark my words. 😎