In short, go with the Warner Brothers set with the beautiful goldenrod antique yellow background.
On a related note:
If you want the ultimate DVD set when it comes to Superman, you can't go wrong with this:
A Fourteen DVD set of all things concerning the Superman movies from the Bryan Singer Superman Returns all the way back to the Fleischer Superman Cartoons! It is all here.
Oh, I forgot. It comes in a really cool keepsake tin and also includes a reprint of the Superman comic book issue #7, a Superman overview booklet and a mail-in offer for 5 reproduction Superman theatrical movie posters.
Superman Ultimate Collector's Edition (Superman / Superman II / Superman II: The Richard Donner Cut / Superman III / Superman IV: The Quest for Peace / Superman Returns) (2006)
http://www.amazon.com/Superman-Ultimate-Collectors-Edition-II/dp/B000J10EREI salivated a bit when I first saw this come out, but waited. I think it was $50-$60 or so. When first released there was a problem with one of the disks, I think it was the Superman III. Since then they have addressed the problem.
I waited and one day I went into the local Goodwill and there it was!
I was a happy guy.
Below is a description of what each disk contains (clipped from the Amazon description of the set):
DISC 1- Superman The Movie
* 1978 theatrical version with commentary by producers Pierre Spengler & Ilya Salkind
* Theatrical trailers, TV Spots
* Soundtrack in Dolby Digital 5.1 (original 1978 audio mix in Dolby Digital 2.0)
DISC 2- Superman The Movie
* 2001 expanded movie with commentary by director Richard Donner & creative consultant Tom Mankiewicz
* Soundtrack in Dolby Digital 5.1
* Music-only audio track
DISC 3- Superman The Movie
* Taking Flight: The Development of Superman
* Making Superman: Filming the Legend
* The Magic Behind the Cape
* Additional scenes
* Screen tests
* Audio-only bonus: additional music cues
DISC 4- Superman The Movie
* The Making of Superman the Movie vintage TV special
* 1951 Superman and the Mole-Men movie starring George Reeves
* 9 Fleischer Studios Superman cartoons mastered from superior vault elements
DISC 5- Superman II
* Movie with commentary by producers Pierre Spengler & Ilya Salkind
* Additional scenes (over 8 minutes worth)
* Soundtrack in Dolby Digital 5.1
DISC 6- Superman II
* The Making of Superman II & Superman's 50th Anniversary TV specials
* First Flight: The Fleischer Superman Series featurette
* The Remaining 8 Fleischer Studios Superman cartoons
DISC 7- Superman II: The Richard Donner Cut
* All new introduction by director Richard Donner
* Commentary by director Richard Donner & creative consultant Tom Mankiewicz
* Superman II: Restoring the Vision featurette
* Additional scenes
* Dolby Digital 5.1
DISC 8- Superman III
* Movie with commentary by producers Pierre Spengler & Ilya Salkind
* The Making of Superman III vintage TV special
* Additional scenes (over 19 minutes worth)
* Theatrical trailer
DISC 9- Superman IV: The Quest for Peace
* Movie with commentary by screenwriter Mark Rosenthal
* Additional scenes (over 30 minutes worth!)
* Theatrical trailer
DISC 10- Superman Returns
* Theatrical cut
* Dolby Digital 5.1
DISC 11- Superman Returns
* Requiem for Krypton: Making Superman Returns 3hr multi-part documentary
* Additional scenes (without Return to Krypton sequence)
* Theatrical trailers
DISC 12- You'll Believe: The Making of A Saga- 5 part documentary
* Origin- Superman in the media & the challenges the Salkinds faced
* Vision- Choosing the right script, director & actors
* Ascent- Production of a new kind of fantasy film
* Crisis- Conflicts behind Superman II
* Redemption- Criticisms & burnout of Superman III & IV
* Bonus new documentaries- Mythology of Superman, Remembering Christopher Reeve, vintage Superman parodies
DISC 13- Look, Up in the Sky! The Amazing Story of Superman
* Kevin Burns 2006 documentary on Superman's history
DISC 14- Bryan Singer's blogs
* All the web blogs plus two never-before-seen