I grew up with Superman The Movie, but my fave is Returns.
That's a little out of the norm, but also that's kinda why i dig that perspective.
I liked Returns, sometimes i shake my head at all the people that think all these movies are absolutely horrible. SM3, Returns, Wolverine. (Returns being the best among them) None of these movies were AWESOME! But i certainly don't view them as the Cardinal sin that some do. Bad movies to me are Catwoman, Batman and Robin, Daredevil, FF etc.
For me it goes like this
STM: 10/10 (best Superhero movie made to date IMO)
Superman 2: 8.5/10 ( Donner cut 9/10)
Returns: 7/10
but I'm not one that lets that detract from my enjoyment of a film, a movie that stands and falls with its effects is a pretty lousy movie otherwise.
Superman: The Movie, no doubt. I don't know what's up with the "dated" thing people speak of all the time. Yeah, visually (effect-wise) it hasn't aged as well as some other movies from the time, but then, they were making a man fly in the late '70s, obviously it's not gonna' look flawless now, but I'm not one that lets that detract from my enjoyment of a film, a movie that stands and falls with its effects is a pretty lousy movie otherwise. Superman's pretty good and holds up well (it's not The Godfather, but as the lighthearted entertainment it's meant to be I think it's good), and in my eyes the effects are acceptable enough most of the time.
There were no Superman movies after #2. I stand by this.
But Superman movie are movies that rely on heavy SFX to make them enjoyable. Its part of the character. So I understand Why someone would say that dated SFX will make the movie less enjoyable.