OMWF, Wrecked, Hells Bells and Seeing Red.
Everyone seems to love Once More With Feeling, I don't love it as much as I did the first time I saw it, but of course it's a wonderful episode - plus I'm pretty much a musical fanatic :]
Wrecked - Well, after Tough Love, this is basically the first glimpse of Evil Willow - or in the words of Andrew and Jonathan; Darth Rosenberg =P - and who doesn't love her? Dark Willow rocks.
Hells Bells - Hmm, I'm not sure why I like this episode...my favourite characters heart got broken...? Oh well, I still love it, I mostly love the phony visions, I'm not sure why, it's just really interesting to see them.
Seeing Red - By saying this was one of my favourite episodes that doesn't mean I LIKE it, no way, it makes me cry so much I'm suprised I don't flood my house whenever I see it. Though it was an important episode in the scheme of things, but why oh why did Tara die :[