ok, i've come to terms with the small chance of a spin-off (and the ever smaller change of a spin-off that won't disappoint) so here's my idea:
Spike, Faith, Willow, Andrew, Wesley, and Cordy form a scooby Gang/Angel inc. the show will mainly focus on comedy, great drama and unneeded kick-@ss stunts/effects, with every one playing an important role
Spike: goes and kills things, acts cool, and handles the cool flash backs of when he was evil that i've come to love from Angel
Faith: kills thing and acts cool
Willow: does the magic stuff
Andrew: well be funny
Wesley: well be the smart researcher who shots stuff
Cordy: has the visions of things that must be killed, magiced, researched, or made fun of.
and Anya will be there for no explained reason because she's Anya.
(keep in mind that i still like the people not listed, but i didn't want to be too much like either buffy or Angel, but they would have to guest star)
ETA: Lilah needs to be there too, cuz really...Lilah