Vampires

The Vampires in TS4 are the best of any of the iterations. The powers/weaknesses system is a great balance and there are ways to get around some of the weaknesses if you want a Vamp that will be more powerful. Vamps don't need to ask permission - they take what they want! >:) The animations are better than ever and sparring is awesome.
Buy/build items are amazing.

I swore I wouldn't pay more than 50% off of anything for TS4. I broke that promise to myself and paid 25% - don't regret it one bit. ;) (I'm a stickler for sales.)

If you like Vampires, go for it!