In Angel, for me, it's Dad, Harms Way, Smile Time, Spin the Bottle, Life of the Party, You're Welcome & Redefinition (Cordy/Gunn/Wes drunk karaoke singing in Caritas is an all time favorite moment)BtVS:
Angel - love the sweetness and lightness of Season 1 Bangel. This episode manages to sneak a little drama in too!
Witch - another Season 1 gem, it's so campy and fun!
What's My Line Pts 1 & 2 - just love the overall storyline, the Bangel-y goodness and the introduction of Kendra
Buffy vs Dracula - so camp! So much fun! So cheesy and delightful!
Once More, With Feeling - I love musicals. 'Nuff said
City Of - love this pilot, so fresh and entertaining and sets up the show so well!
Dear Boy - my Dangel heart! It loves this episode so much
Blood Money - always love some Anne Steele
Fredless - I love Fred, I love this episode, the Burkles are precious and this episode is everything
Dad - love seeing Angel as a dad and love the end of this episode
You're Welcome - such a great send-off for Cordy
Origin - makes me feel equal parts happy and sad