Granted, it's a predictable choice, and I bet a lot of people will see it as unnecessary as it already is seen as a very popular, critically acclaimed and influential show (after all there are specialized college studies that focuses on this show). But, there will always still be people out there that haven't seen it. Some might have meant to at some point, but just never got around to it. Others might have written it off because of the (purposively) silly title or the vampire theme (which has definitely been getting flack lately with Twilight becoming a phenomenon) or some other unknown reason.
Another reason I choose to start my column with this particular show is because it was my own gateway to fandom, and it will always be near and dear to my heart. But despite of my own nostalgia factor, I genuinely view this as a high quality show. Yes, there will be the occasional dodgy special effect, and things like pop-culture references, fashion, technology, and so on will heavily reflect on the 90's and not be as applicable to today's life as a teenager - however, the underlining stories, the core struggles the show touches upon, those will always be universally relevant. Because that's what Buffy really is about, the struggle of growing up, of figuring out who you are and what you're going to do with your life. The monsters she battles with are metaphors for the struggles you go through as you grow up and come into adulthood.
The show centres around Buffy Summers, who has been chosen to be the slayer - one girl in all the world, born with the skill to hunt the vampires, the demons and the forces of darkness. Some given months prior to the show's starting point, Buffy's predecessor died in the line of duty, thereby passing on her powers to the next slayer in line. Until the moment she was called, Buffy lived just like any other regular high school girl, completely unaware of the many evils in the world.
3. Women are kick-ass
Whedon's inspiration for creating Buffy, was the image of the blonde, helpless girl in the alley in horror movies, who always ended up killed. He wanted to turn that image around, he wanted the girl in the alley to turn around and kick the monster's ass. Thus he created the slayer, which we already know is Buffy. But she's not the only kick-ass woman in the show, far from it. Pretty much all of the main female characters are strong, powerful people, even if they don't initially start out that way.