Re: The "realism" thread
I think it's good just to give a plausible feeling.
Batman might be a fantasy concept but if you give him an armoured suit like Burton did in 1989 then you can take the character more seriously. And Batman 89 wasn't a realistic film.
Now giving Spiderman a home-made looking suit is terrible. It's also important to keep things looking good. Thing is to give it a good reason/explanation, which doesn't have to take 40 minutes of screentime, or 20, or even 10.