I've watched this show about a gazillion times and am up to S3 in my current rewatch. Spike and Anya are my favourite characters, although there is something great about most of them; which especially comes out in the snarkfest that is their dialogue.

I'm not the sort of person who worries or thinks very much about aging, but I feel semi-old because this time around Giles is the dude I'd wanna bang. Hey there, Ripper

That's okay though; Willow got with Wesley in the end so I will consider my watcher-librarian fetish vicariously played out