The main problem with oWoD Clans... is they were actually organizations. If you were Giovanni, you were expected to be a fucking Mafioso. If you were Tremere, yeah, you had to find a Chantry, and follow with all the other Tremere. If you were Lasombra, sabbat aristocracy!
There was no room for variation, everyone was ONE WAY ONLY. Sure, you could deviate a little, but that inevitably leads to faggots jumping down your throat saying YOU'RE PLAYING YOUR CLAN WRONG.
I'll play nWoD, where I can be a social, intelligent, cultured Gangrel, groomed to be the new Prince.
Or an attractive Nosferatu, creeping people out with how good I look.
Or a brutal, grungy, primeval Ventrue harking back to the days of the Norse pillagers.