Everything must be in moderation. Even chocolates.
I believe majority of the human population on this planet love chocolate. Be it milk chocolate, white chocolate or dark chocolate. Like everything else in the world, there are lots of benefits including chocolates in your diet. I love dark chocolate. The darker the better.
Here are some links which you can go to to find out more about the benefits of chocolates:
Whatever it is, always consult your doctor or your nutritionist for any questions you may have regarding your health and diet.