I'm not the guy you are replying to, but how many Superman comics have you read?
I've read Byrne's Man of Steel (not his entire run though)
All Star Superman
Secret Identity (which MoS and BvS take a lot from)
Birthright (which MoS takes some parts from)
Superman Ending Battle
What's so Funny About Truth, Justice, and the American Way?
For The Man Who Has Everything
Whatever Happened to the Man of Tomorrow
Final Crisis (I count that as a Superman story, as much as it is a Batman story or a Flash story)
For All Seasons
most of Adventures of Superman, including that one three part arc about Superman at the end of the universe.
I've read most, if not all, of the Smallville comic
I've watched all of Smallville
I've watched all of the Donner movies
I've watched all of the Timmverse
I've watched the Fleischer cartoons
I've watched MoS and Superman Returns
And I think these have been great movies about Superman. I dont really how you see how you can say he is dour, he really isn't gloomy for the majority of his time on screen. His first talk with Lois is pretty light in tone and he seems very understanding, and they are on the brink of an alien invasion. He displays a range of emotions; anger, happiness, desire, despair, and most of all hope.
His tears at the end of MoS, when he is forced to kill Zod, really shows his emotional vulnerability.
And the only time he is really dour in the last third and I think thats really understandable, given he thinks his very presence caused a terrorist attack and drove one of Gotham's greatest heroes to become a killer/villain.
And even then, he gets over it all pretty fast via meditating on a mountain and then he gets over his dour mood again by having a team up with Batman.
Also I REALLY dont see how you can say he is a crybaby or a fuck up, he is appropriately emotional and has fucked up far less than any other incarnation of Superman.