Alyson Hannigan told Entertainment Weekly which her favourite Buffy episodes were in an interview in October 2005:

4.10 Hush: “It was a whole new way of figuring out how to act, …

David Boreanaz said of filming the Angel/Angelus fight scene in 4.15 Orpheus:

“That was a probably one of my top five episodes, that one. The filming was all split. They were using …

In an interview with the BBC, Drew Greenberg said his favourite episode was 7.13 The Killer In Me as it was a challenge to write but was “rewarding and fun”.

Gareth Davies, a Buffy producer, said that 2.16 Bewitched, Bothered And Bewildered was his favourite episode in the October 1, 1999 issue of Entertainment Weekly. He just loved the rat.

Jeff Pruitt, the show’s stunt coordinator until season five, said in Entertainment Weekly (issue October 1, 1999) that 2.07 Lie To Me was his favourite episode.

Buffy the Vampire Slayer creator Joss Whedon spoke to USA Today in May 2003 (after the final episode had aired) about his favourite Buffy episodes. They are as follows:
2.14 Innocence: “It’s …

Kristine Sutherland’s (Joyce) favourite Buffy episodes are 2.11 Ted, 3.06 Band Candy and 2.01 When She Was Bad.

Buffy casting director Marcia Shulman’s favourite episode is 2.14 Innocence.

In the October 1, 1999 issue of Entertainment Weekly, Michael Gershman, the director of photography, said that 3.01 Anne was his favourite episode.

Nicholas Brendon has said that he cried when he first read the script for 3.13 The Zeppo as he was so delighted with it, and it’s meaning for his character. He …

Buffy writer Rob des Hotel stated in The Monster Book:

“2.15 Phases is probably my favorite episode of the five we wrote. Oz just has an ability to pinpoint what’s going on …

Sarah Michelle Gellar talked to Entertainment Weekly about her personal favourite Buffy episodes:

“I loved ”3.20 The Prom”. It stood for everything Buffy was about: the fact that she so badly wanted …

Sophia Crawford, Buffy’s stunt double, said that 3.16 Doppelgangland was her favourite episode in the October 1, 1999 issue of Entertainment Weekly.

Todd McIntosh, Buffy’s make-up supervisor, said in the October 1999 issue of Entertainment Weekly that his favourite episode was 3.09 The Wish.

Tom Lenk mentioned in an interview which his favourite Buffy episodes were:

“I’d have to say, out of respect for my character, 7.16 Storyteller. I just got to make such an ass …