I like the Vampire Counts in Warhammer. The Five known Bloodlines each have their own (extensive) histories and are pretty diverse in appearance and playing style.
They are:
The Von Carstein :- the aristocratic (and, arguably the ones that most closely fit the classic Dracula archetype) family that ruled Sylvania. They are a jack-of-all-trades, combining command over beasts with combat competence.
The Blood Dragons :- these are less concerned with conquest over nations than they are with achieving physical and martial perfection. As such, they will not be accompanied by hordes of zombies and skeletons, but a corps of hardened knights. The joint most combat-oriented of the bloodlines (along with the Strigoi), the Blood Dragons concern themselves with skill at arms more than brute strength.
The Lahmians :- an (as far as I know) entirely female bloodline, these vampires concern themselves with subtlety and information gathering, infiltrating the higher echelons in Imperial and Bretonnian society. Perhaps the second most proficient at Sorcery.
The Necrarch :- these vampires are reclusive, withered and perhaps best resemble a cross between Nosferatu and a corpse. These are physically the weakest of the vampire bloodlines, yet are still capable of fighting off mortal attacks. The objectives of the Necrarch are to study every aspect, every facet, every single iota of magic, especially Necromancy. Their knowledge and studies make them the most proficient at Sorcery.
The Strigoi :- these are the outcasts, formerly aristocrats in themselves until the destruction of their kingdom of Strigos. Forced to hide from the Hunters, and soon the other bloodlines, the Strigoi became scavengers, waiting outside cemeteries and graveyards to drink the cold blood of the recently deceased. Their bodies, once humanoid, became akin to hulking gargoyles. However, their abilities to command the dead still avails them, and they are arguably the physically strongest of the bloodlines.