I absolutely loved Release and Orpheus, because Faith comes back, and you remember why you love her so much. Her lines are wicked, and she's got that killer attitude. There's something about Eliza Dusku that makes all my favorite episodes of Angel have her in the mix.
The Magic Bullet was awesome, as was a lot of the Darla episodes in Season Two, and Heartthrob and IWRY ("I felt your heart beat..."🙁)