Hmmm. Hottest moment chemistry-wise would probably be the kiss at the end of "Angel" where Buffy's crucifix burns into the former's chest. Almost did the same to my picture tube.
Hottest visual from a solely prurient perspective would be the last 10 seconds of "Faith, Hope, & Trick."
I think my favorite visual was Buffy and Faith dancing at the Bronze, too.
Although it receives healthy competition from Willow and Tara all tarted up in Xander's dream in Restless. I was very upset that they cut away from that scene.
Hottest visual from a solely prurient perspective
I may have to go with the end of Grad Day I, when Buffy donates Slayer-blood to Angel. Best TV orgasm (heck, possibly best on-screen orgasm) evah.
Hottest moment for me:
Vamp!Willow breaking the Shemp!Vamp's fingers one by one in "Doppelgangland."
"Who do you work for?"
(heck, possibly best on-screen orgasm) evah.
I'll still take the house falling out of the sky in My own Private Idaho.
Oooh! There's another good hot moment...
Vamp!Willow feeling NotVamp!Willow up in Dopplegangland.
t makes note to go back and watch Doppelgangland. Once is not enough
Very odd-for-me hottest moments:
When Angel grabs Buffy as she is leaving to go to school and kisses her at the beginning of
Suprise.
Also when he grabs her in the cemetary at the beginning of
Reptile Boy.
And I'm not even a big A/B fan.
Vamp!Willow playing with "the puppy" was pretty awesome, too!
XANDER: " Can I have you?"
What is this from?
Of course, I don't think there's another actress in the world that does CryFace so well with so many subtle variations.
She also did a great job with this when she said "Tara" at the beginning of CwDP.