Raven is a classic goth name, chosen by black-swathed, black-haired teenagers, wearing lots of dramatic make-up and cheap black and silver jewellery, for themselves.
Therefore very hard to take seriously for anyone else.
It reminds me of the episode of The Mighty Boosh where the characters are competing to come up with the gothiest of goth names. Raven would be 'medium strength' on that scale. Not quite up there with Obsidian Blackbird McNight, is it? (But, wouldn't O. Raven McNight have been gothier? Oh yes).
Similarly that CBBC show hosted by the mystical, mist-wreathed, dark-haired, dark-ages Scottish person. Another two-dimensional, deeply earnest (therefore rather hilarious in the three-dimensional world), dramatic character. (Not saying the Boosh characters are 2D at all but the goth alter-egos are).
The carrion feeding habit of the raven - feasting off the bodies of the dead - definitely pushes it up the goth scale, and the yuck scale. Corvids are the British equivalent of vultures. Is that really the association you want for your daughter?
I can see the attraction for a young woman with long, sleek, black hair, who is both serious enough to carry it off and self-aware enough to embrace the self-sending-up quality of the name. Rather like Morticia Adams, or Lilith from Frasier.
If the 'v' sound appeals, how about Vivienne, Venetia or Morven? Morven seems quite close to Raven in its mystical sense, without the link to a specific look.
Faith is an incredibly strong name. What could be stronger, for those who have it, than faith? (Also a slayer from Buffy but that association isn't going to be overpowering, or even that well known now).
If you like virtue names, how about Verity, or as a pp suggests Honor? There are plenty more.
Wendy is a weak, watery, nursery-confined name. 'My little fwiendy wendy'. Ugh.
Sorry to be so blunt but you did ask.