fly on the wall
you have but-face.
I don't want to pick one over the other, because I think they were both pretty damn heroic.
Still, let's look at their positions. Spike was in love with Buffy. He wasn't going to not help her, let her die, etc. But Anya...I mean, she could have used the "Xander left me!" as an excuse and left. Nobody would have been surprised. But she didn't. She didn't always get along with these people, Xander had hurt her terribly, but she was willing to die beside them, fighting.
I guess I'm leaning a little towards Anya.
Still, let's look at their positions. Spike was in love with Buffy. He wasn't going to not help her, let her die, etc. But Anya...I mean, she could have used the "Xander left me!" as an excuse and left. Nobody would have been surprised. But she didn't. She didn't always get along with these people, Xander had hurt her terribly, but she was willing to die beside them, fighting.
I guess I'm leaning a little towards Anya.