I would LOVE a high quality Buffy and Angel line that went reasonably deep. For me the must haves are:
Buffy
Must - Buffy, Angel, Spike, Willow, Xander, Giles, Faith
Nice to Have - Cordy, Oz, Tara, Glory, Darla
Angel
Must - Angel, Wes, Lorne, Charles, Cordy, Fred, Spike
Nice to Have - Iliria...