I never do this, but I had to pimp this story -- Last Horizons I Can See, by redbrickrose, at rekindlespangel. It's set in season 5 AtS, and it captures the complex and conflicted feelings that Angel and Spike have for each other, past and present, in a way that is both really moving and absolutely genuine. Beautiful ideas conveyed with beautiful language.
http://rekindlespangel.livejournal.com/15968.html#cutid1
http://rekindlespangel.livejournal.com/15968.html#cutid1