I just watched the episode yesterday. Wow.
It's special to me because somewhere in the middle of Season 2 I realized that I wasn't just watching "some silly kid's show." I realized I was watching one of the all-time greats. And the Season 2 Finale did not disappoint.
SMG was brilliant. I really focused on her yesterday, and her sword work is incredible!! I bet she practiced for months. And then the payoff was so emotional because Joss's character development is perfect, and the actors are great. At the end Buffy knows her destiny, embraces it, and chooses the world and her duty to it. Buffy Summers, the 17 year old kid, is dead, while Buff the Vampire Slayer is alive. She may not like BtVS, but she knows and accepts her duty. And she will do that throughout the series. As I was watching it, I also embraced her destiny, and realized the "silly kid's show" was like no other I had ever watched.
Becoming Part 2 is one of the all-time great episodes.