Sara v Jackie.

Wielder of the Witchblade
vs
User of the Darkness

I would think that sara gets her t!tties whipped in this one. She hs no chance

Both creatures they wield came from the same source. I think it's a draw.
Oh and is it during daylight or night? As I recall Jackie can't do anything during the daylight.
If it's during the day, I think there is a good chance that Sara could win.