I like chocolate bars that are about 72% cacao, but I want them sweetened. In short, I like "bittersweet" chocolate.

There are of course times when nothing will do but something nice and sweet and with not too strong a chocolate flavor, like a good old-fashioned Hershey bar (milk chocolate) with almonds.

I don't know if there are actually people who like unsweetened chocolate ("baker's chocolate" as we refer to it in the US). I don't like unsweetened chocolate at all.

One of the most delicious things I've ever had was a package of chocolate covered cacao nibs. That's right: chocolate-covered chocolate! A chocolate company in Somerville, MA makes them, but, unfortunately they are incredibly expensive and we don't buy them very often.