The ones that surprised me the most were # 8 Giles, # 7 Xander, # 6 Anya, # 5 Willow, # 4 Spike, # 3 Tara, # 2 Dawn and # 1 Buffy. I was totally shocked how beautiful Buffy, Dawn and Tara sounded in Once More With Feeling! I also was amazed by Spike, Willow and Giles! They all did an incredible job in this episode! But for Me personally I wasn't really blown away by Xander and Anya's performances!

We already knew that Giles was a good singer, and both Tara and Spike are played by actors who are also musicians/have musical training, so their musical talent wasn't surprising if you knew that.

It surprised me that Alyson was so chicken and barely sang at all.

^Since she has a phobia of singing in public I was more surprised that she did sing one line.

Tara, Dawn and Buffy surprised me because they sounded like beautiful, heavenly angels!