I've never heard of anyone named
Nefertiti or
Nefertari (apart from the wives of
Akhenaten and
Ramses, respectively). I'm not nuts about
Nefertiti, but I love
Nefertari. I don't think that I could use it seriously though, as it's quite the name to live up to. It's a shame, because I really like the meaning and hieroglyph of "nefer."