I don't know exactly what has changed in the last 5 years, but having a chat to people and I have heard that even vampires have had a visit by the gimp stick. Why, I don't really know, I used to be able to own decked vampires with very little gear on even non-giant warriors. They would probably only really have 3 or so skills that I'd call super, some of these only applicable in certain situations or have reasonably long cooldowns. Apart from this, they are much like a ranger. Just without camo, pets, archery, track, herb, dual parry and with the hugest vulnerability on earth (as long with a regular vuln) to boot.
Vampires are still pretty buff. With a spell for every class, well almost.
If they get the drop on you it can be deadly. Especially if you lack saves.
For example the bite thing is ridicule if you are a communer.
But if you manage to damage them enough to sent them running, they can just disappear and you will be at difficulties at tracking them down.
"I used to be able to own decked vampires with very little gear on even non-giant warriors"
This reminds me the story of the old Warrior on mithrill with a staff killing a decked Vampire.
Guess what, that is the best Vamp fighting combo.
