Felicia
Honestly, it's whatever you're most comfortable doing. I know you've been here a while and judging from your prior lead on the strategics, I made the assumption that you could handle your own hunt, but if you're not comfortable with it - especially when it comes to going with someone like Jack who doesn't remember much, which is more than understandable - just yet then we can definitely have you team up with Faith and Seifer. I'd rather they go in a larger group anyway, since vampire's are far more unpredictable. They could be trying to raise up their own army for all we know.
Where do you think? I hope you're prepared to dig up a few graves. Just a note: look for the more recently deceased. Picking a random one and digging is just gonna end badly for you.