I'm torn on this, because I think that Spike was very evil but that the line in question was out of the blue and a bad idea. As I see it, Spike used to kil people for sensual pleasure and excitement, but didn't share Angelus's sadistic love of torture for no purpose. (But he'd torture someone to find out where the beer was.)

But that in itself was very, very evil, and making him the same as Angelus gives too much respect to amoral fans who think killing people for fun or money is cool, and that only extreme sadism counts as evil