First I must say......
*Your a lucky lady to have the ability to pull off dark or light hair and look 
SUPER Hot in both!! (Not many girls can do that)
 
In my personal experience I have attained far more clients with blonde hair rather than when I switch it up to dark. 
 
*Normally I would suggest which ever color makes you look better.
Yet, clearly you look great in both.
 
*Therefore my opinion is to wear it in which ever color makes you feel the sexiest!!!
 
Best of wishes girl! 
Lina xoxox
http://www.linalovelle.com