Probably better in offtopic, really it comes down to if your definition of super hero requires super-powers, wikipedia and tv tropes don't, but some sources like the oxford dictionary do. It's all pretty redundant as the hero is taken from greek mythology and was originally reserved for demi-gods and other powered characters like Heracles and Achilles, so the connation of super is already present. I support the former, that people without powers can be superheroes.
I believe Batman
is a super hero, because in the comics he can do pretty much anything Superman or another can, gets shot in the chest? Has armour. Need to go to space? Bat-rocket standing by. And in the DC universe even though Batman has no obvious powers, he has been shown to be able to perform feats that would be superhuman here, simply because of his intense training.
frozen_scarecrow said:
Here's a general interpretation of Batman I liked
http://alatenightcupofsoup.blogspot.com/2011/07/bat-wuss.html
Overall, there's nothing all that special about him except a crap ton of money and some parenting issues.
The problem with that is Batman isn't motivated out of any sense of vengeance, in fact up til the reboot (and probably still after) canonically he did have revenge, in his very early years he managed to drive Joe Chilli (his parent's killer) to suicide in one of Grant Morrison's more chilling tales. Rather it's the more ambitious ideal that no one should ever be a victim to crime like he was, that's why he originally recruited Robin, he though if he could get Dick Grayson closure over the murder of his parents he wouldn't turn out as scarred as he was, which in fact is the case, Dick is a lot more fun-loving and sociable even when he was filling in as Batman