I really like them all, however, I'd rank them:
Juliet: I've never known a soul with this name. The Shakespeare association used to put me off until I began to think if the worst thing that could be said to a
Juliet is, "Where's your
Romeo?" then there are a lot worse names out there.
Juliana: This has an old-world feel to it as well as being very soft and feminine sounding. It also has excellent nn options if so desired.
Julie:
Julie is so outgoing and friendly.
Julia:
Even though I like
Julia, I've known a few who were snobbish or arrogant or just flat-out unkind so I do have negative associations with
Julia. Still, that's my issue and
Julia should work fine for you.
"Darkness cannot drive out darkness; only light can do that. Hate cannot drive out hate; only love can do that." --
Martin Luther King, Jr.