On a certain level, I’ve always thought that on the whole, the Marvel heroes were cooler than the DC heroes because of the angst factor. With one exception- the Batman. Well, two exceptions- Batman and Green Arrow. And Nightwing…
Thing is, I also have a real preference for my superheroes to not have superpowers, and the Marvel Universe seems to have a dearth of non-superpowered heroes.
IIRC, one of the major reasons for the introduction of Robin was to soften the Batman’s image a bit. In the early Batman comics, he was pretty hardcore and the Suits at DC decided he needed a kid around to take some of the edge off, and maybe add a more lighthearted aspect. I understand that during the Golden Age, Batman and Robin used to trade quips during a fight.
I do think that there is another function for kid sidekicks that has not, so far, been mentioned in this thread, but which has become a factor in the Batman storylines, and to a lesser extent, the Green Arrow as well. Namely, the heroes becoming aware of their own mortality, and wanting to train a new generation to carry on the Fight Against Evil after they die/retire. Batman has just gone through Robin Mark IV for just this reason.
[slight hijack] There is a very funny scene in Green Arrow: Quiver on the subject at hand. On the flight home from Star City, on board an aircraft being piloted by the Batman, Arsenal (or, the Artist Formerly Known as Speedy), inquiring about Mia Dearden, asks…
Arsenal: And that girl? How old do you think she was?
Black Canary: Fifteen, sixteen-- why?
Arsenal: You just know he’s training her to be the new Speedy.
Black Canary: You think?
Arsenal: It’d follow the pattern: Train a kid for a while, then abandon said kid and go hang out with Hal. Classic Ollie. Man, I really hope I’m wrong. I mean, arent’ most heroes beyond kid sidekicks at this point in their careers?
Black Canary: (looking at Batman, who isn’t saying a word) Ahem…
Arsenal: Not… you know… that there’s anything wrong with that… oh, boy…
My initial reaction to this little exchange was, “yeah, and just exactly how is the next generation of heroes going to get trained? It’s not like any aspiring hero is going to be able to find a magic ring or get bit by a radioactive spider or somesuch and suddenly acquire all these powers.” [/slight hijack]