Saddest- Tara dying, Giles going, Spike leaving, Xander walking out of his own wedding, Willow becoming good again, Buffy in the institution and Dawn being all neglected etc. I think i actually ran out of tissues
Funniest- Invisible Buffy and the trio
Most Impowering- Agreeing with Social Suicide with Spike and his soul, but WOW unexpected!!