0.9.5 section from guidebook:

ghuls - They are only dangerous because of their paralyzation ability. Otherwise easy to kill. PCs with halfway decent DV should not have a problem.
It is also worth to mention, that decent PV is also very useful against ghuls(and other undeads with special attacks). If ghul fails to hurt PC, ie. he hits without dealing any damage, his special attack won't trigger. It also seems that high willpower causes special undead abilities to happen less often(even if they manage to hurt PC).