In your own space, share your love for a trope, cliché, kink, motif, or theme. (Or a few!) Tell us what makes it work for you, and why it appeals to you so much. Talk about what you like to see in fanworks featuring that theme most.
I read a lot of Spuffy fics ... and one thing I do like are time travel. Ones where one, or the other, or both travel back. For example travelling from season 7 back to 2 or 3 to re-write the bad things.
Another story line I like between Buffy & Spike is that of pregnancy .... and how they, and the Scoobies, cope.
Another pairing I like reading is that of Jack & Sam from Stargate SG1 ... however they have to be realistic as to how they end up together, in any way at all! Like Buffy & Spike they are a couple who have feelings/attraction, yet shouldn't. It's nice to see them beating the odds!