I mean, have you guys ever noticed this?
I think I started to understand why when I was reading TARZAN AT THE EARTH'S CORE today. You've got to remember, Tarzan was a truly fascinating character; JUNGLE TALES OF TARZAN showed us Tarzan climbing a tall tree to challenge the Moon to a fight (!) and Tarzan has many personality traits that are absolutely fascinating: his curiosity, his savagery alternating with his sophistication, and so on.
And YES, Tarzan was a super-macho, outdoorsy, rugged, larger than life character whose arrows never missed.
But somewhere around TARZAN, LORD OF THE JUNGLE, Burroughs was mostly on autopilot with lost cities and beast-slayings and forgot to make Tarzan likable. You had the usual stuff about Burroughs reminding us time and again how mighty Tarzan is, and how great a shot Tarzan is, and how
huge-dicked Tarzan is...and because Tarzan was no longer likable, I started to resent him.
So, in TARZAN AT THE EARTH'S CORE, Tarzan actually got LOST. I'm not joking, it was because of Pellucidar's never setting inner sun.
Let me tell you, I had to laugh at Lord Greystoke like that ugly kid from THE SIMPSONS.
HA, HA!
"Hey, next time, try Google Maps, huh?" Likewise, Superman, as a character, is all about the excitement and thrill of power, and this sense nothing is impossible for him.
But if Superman isn't likable, if Superman isn't interesting, you start to RESENT him.
Combine this with the totally true belief that Superman is an "old fashoined" kind of hero (which is not necessarily a drawback, it's merely
who the character is) and you get a lot of people not liking the character.
( Incidentally, I don't entirely believe Superman is entirely "old fashoined" in the same way, say, Buck Rogers is, because...well, did you see that scene in SUPERMAN RETURNS where Superman got shot in the eye and the bullet flattened? WOW, that was cool; the character has a great deal of untapped and very contemporary ability to make jaded modern audiences say "wow, that's amazing." If Superman is an old man, he'd be one of those skydiving, marathon-running, sunglasses-wearing sex maniac old men in beer commercials. )
A lot of the reason people think Superman is uncool is because of misconception. If you want to see a caricature of how Superman haters view the character (and the DC Universe in general), read Englehart's "Serpent Crown" arc, a pointed critique of DC's original universe.
The "Squadron Supreme," a semi-Justice League, are the uncool defenders of the status quo that work for the hypnotized wearer of the Serpent Crown, President Nelson Rockefeller (I can't think of a single leftist conspiracy theory of the sixties that didn't involve him; try to imagine if Ken Lay ever became President). The Squadroners speak in dialogue that is over-the-top, especially compared to the straight-talking, hip, liberal Avengers.
Hyperion, the Superman analogue, is an arrogant muscleman that believes might makes right, a scary and thickheaded "true believer" who boasts of his status as the planet's greatest defender all the while having a vague, alien passive-aggressive contempt for earthlings.
In the context of the political and social events of the 1970s, having a less patriarchial, Charlton Heston-esque Superman, as played by Christopher Reeve, was a pretty good move.
The most revolutionary thing that the SUPERMAN movie did, its most lasting impact on the character, was to have there be real passion between Lois and Superman, to the point where, at Lois's death, Superman breaks down.
What's got to be remembered is that Superman and Lois didn't really have chemistry in any popular medium before. George Reeves and Noel Neil were pretty chaste, Fleischer Superman had better things to do than play kissyface with dames, and even in the comics, Superman avoided Lois for the better part of his existence.
I would argue that the creation of a romance between Superman and Lois in that film was one of the steps they took to have a "likable" Superman and build away from the false pop culture image of Superman that was personified by Hyperion. One of the truly scary things about Hyperion, as written by Englehart, is his sexlessness, with comments like "I will never understand the courting rituals on this planet."