Is Buffy Summers really a super hero? Yes she has the strengh to fight all the monsters and such. But does she have any real weaknesses? Apart from having "Bleeding tragic taste in men." as Spike puts it.
I'm not sure I understand the question, but perhaps it's facetious? How are we defining "hero"? Is the assumption that a lack of "weaknesses" prevents Buffy from being a "hero"? she has weaknesses a-plenty, not just in terms of her romantic life (which is one of the most regressive aspect of the show, IMO) Or is the assumption being that too many weaknesses disqualifies her?
I prefer "hero" to "heroine" btw - "heroine" still sounds like an accessory to the "real" (read: male) hero. To me, Buffy Summers is a HERO, full-stop.