From a Brit perspective... they've just relaunched Old Jamaica. Cadbury's dark chocolate with rum and raisins. I loved it when I was a kid, but they stopped making it forever ago. Then, last week, I saw it in Sainsbury's and bought six of the big bars.
...that stuff had better not be discontinued again. HULK SMASH etc.
I'm not bothered about all this Swiss and Belgian chocolate, a bar of Cadbury's stuff will do me fine. As for American chocolate, all I've had is Hershey's which is... not all that great. The peanut butter cup things are alright.
EDIT: On second thoughts, I don't think the peanut butter cup things are Hershey's. But I can't remember what they are. They're in an orange packet.