Whereabouts are you traveling? I can personally recommend Chocolats Nobile.
http://www.selection-chocolatiers.ch/fr/Chocolatiers/Casa-Nobile-Baetterkinden.58.html
The list on this site is pretty good.
If you get a chance, try to visit Whiskey Castle - http://www.whisky-castle.com/htm/home-castle.htm - I was there during the 100th Anniversary of Felchlin back in 2008 and it was tremendously interesting and tasty.
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@DiscoverChoc