Tara: The one where she breaks up with Willow, in s6. I can't remember what it's called, though... or what happened... just that that is my favourite episode for Tara.

LOL, that's "Tabula Rasa" - another one where there's so much going on, it's hard to call it a Tara episode.

Huh. Most of my favourite episodes for each of them are when they're at low, desperate sad points.

We do like to torture our favorites, don't we? :)