Help me pick my daughter's name please?

Well, to tell you the truth, I'm not nutty about these names -- I think they're a little too obviously trendy and will seem dated by the time your daughter reaches adulthood -- but if you really like them, I suppose I'd go with "Sienna Faith." It's a little hard to say without knowing the surname, but the rhythm of "Sienna Faith" is better than that of the other two names.