I used to like Hershey products, until they started using PGPR in place of cocoa butter. It makes the candy taste terrible. That, and the fact that they use cocoa harvested by child slaves, led me to stop buying Hershey.
That would probably be 3-Bit Chocolate Bars. (I think they're available only here, though...) Asides from that...uhh, Twix probably, or Derby choc bars. xD
I basically like everything when it comes to candy, i could image that beeing a bad thing. But hey, skittles and twix right?