Well, he DID die some years ago and came back... he's a lot weaker in current continuity, but when Superman was totally invincible, the fun was trying to see how writers would present him with challenges. The stories were a lot more creative years ago. You're right that there is not much adventure in his comics, but I think that's true for most of the industry these days, with full page panels and stuff
so stinkin true! the lack of solid stories drives me crazy!!!
but id have to say, Marvel keeps it "real" as far as plots go
True.. Marvel has always been more "realistic"... Getting to Superman, years ago the challenge he had were pretty much he maybe trapped on a planet with a red sun, so how does he get off? Or he's in a kryptonite trap... how does he escape.. that sort of thing... Now, it's just enemies come around and it's a big fight or something... Batman and Superman used to be buddies, now they tolerate each other.. I miss my pre-crisis worlds of Earth One and Earth Two!!!