As I understand it, Superman: The Golden Age Omnibus volume 1 contains the same stories as The Superman Chronicles volumes 1-4. Price notwithstanding, what are the advantages and disadvantages between these two editions? As I understand it, the Omnibus has a foreword and an afterword, both of which were written by Jim Steranko, but is there any other content that’s in the Omnibus that’s not in the Chronicles, or vice versa? Are any of them missing any cover artwork? Is the printing quality in either edition noticeably higher-resolution or higher-quality than the other, in any other way?

I’m led to believe that the Omnibus has sewn binding. Is that so? Either way, does it have any less (or more) gutter loss than the Chronicles?

Thanks.