Which units in the Necropolis castle do you dislike the most (based on their appearance)?

I hate vampires (both of them). They just don't look serious or intimidating; they're more like a little boy who found a sharp piece of metal.

Well! They completely ruined the vampires – they turned them into weaklings. I never include them in my army.

Added 1 minute later

and killed them all... :)

Not at all – they die faster than they can drain life.