Fascinating set of stats. The migration from S/X to S/A is expected of course, but it's interesting that there hasn't been a similar move from Spuffy to, say, Spike/Fred. Like you say, the Spuffy hearts are still pining.

And BTW, I totally agree on the post-season 6 Spuffy romance thing. She has so much growth to do that being in a relationship with anyone right now would be a terrible mistake. Not that Spike's perfect but I can't help feeling he actually does relationships relatively well for a vampire.