Anyone who says dark chocolate is just trying to sound hipster/cool/pretentious.
There, I said it.
Milk is by far the best for mass consumption, therefore the greatest of the chocolate forms. I have pretty plain tastes towards my favourites, but truffles will buy my love/affection or can be used by my employer as an alternative payment form to British Sterling.
Dark is good, but only for those people who eat chocolate by the 3 pieces at a time, any more and the taste just becomes too much. How is one to binge on dark chocolate? Too difficult, therefore inferior.
These two are the only for consideration however, as white is a heathenous substance, consumed by the foolish.