I don't usually get involved with the baby naming threads because mine are now in their thirties. But this is exactly what I wanted for my DD. I wanted a 'great aunt' name. There was a whole generation of middle class women (think I need to be specific about that because working class women always worked, obviously) during the First World War who came out of the house and worked, which was revolutionary at the time. Many of them never married because their men were killed. This was a whole generation of strong women, masquerading as 'sweet little old ladies', but you wouldn't want to mess about with them.
So in the late eighties I wasn't going to get away with Agatha, and my Mum hated Winifred as her second name so that wasn't going to work (and Auntie Win was exactly what I wanted my daughter to be - fun, strong, kind, dry sense of humour, saviour from spiders and just wonderful). I looked around for a great aunt name (or Auntie Win name if I couldn't have that one).
You should be careful for what you wish for. My Phoebe is a strong, fiercely intelligent, funny, wonderful woman. She has been opinionated and difficult at times, but I wouldn't wish for any other daughter. She has some fairly serious MH problems because I married an abusive person and we all suffered as a consequence, but deals with them as best she can, which is pretty well.
Phoebe was a really unusual name at the time (pre 'Friends'), and I gave her a very conventional second name so if she hated it she could call herself by her second name.
Go for it! Give your baby a name which reflects what you would like her to grow up to be. Baby names are very personal - Phoebe was right for me (and my Phoebe). Neither of your thoughts float my boat, but I hope you come up with a name which suits your baby and you.