I'm pretty sure I watched at least half of the Amber Benson episode, but it didn't seem to make an impression. :-( I also watched that episode Fred from Angel was on, back in s1, and I recently watched the episode Six from BSG was on. And I think I saw the Scarecrow episode, too.

It may just be a show where I love the fanon, not the canon.

(Though I'm surprised you don't like DS canon--I would rank DS right after Buffy in terms of my "shows where I love canon like burning.")