You know looking at that pic above is kinda sad...
So yeah more than that
Overall, "I Will Remember You" and "Hero" from season 1. "Smile Time", "A Hole in the World" and "Time Bomb" leading up to the finale.
The other seasons for me where a bit too arc based to really pick out a particular outstanding one. I love to watch for a continuing storyline more with Angel than popping in a stand alone with Buffy.