Chantelle seems dated/stylized, but I really like it. I don't like Charlene as much - I think because I'm fond of Charlotte and Darlene, so Charlene just can't compare.
I feel a bit uncomfortable about parents naming their kid after a sex goddess but otherwise lukewarmly like Venus - because of Venus Williams and because I tend to like V names and Roman mythology names.
Chantelle Venus would be an interesting combo.