How funny, my bf really likes the name hayden but I was a little wary of it. Like urself, I like unusual names, or names with spelling variations. I really like sunflower_pie's name (genipher)
out of ur names I like aurora (sounds good with charlotte in my opinion)
and for the boy I like logan, and blake but to a lesser degree.
But you should always go with what your heart desires ^_^, mother knows best.