Do you want to know? I can suggest some which I know, for full details you can search on the net:
1. La Maison de Chocolat
2. Jean Paul Hevin
3. Partrick Roger
5. Debauve & Gallais (for Kings & queens)
4. Michel Cluizel
Good French restaurant : Senerens (Ex-Michillien Chef), tasting menu around Euro 120 without wine. Euro 150 with wine. I highly recommend this restautant.
Au Pied de Cocbon - pigs legs and seasfood
Famous tea / choloate house - Angelina, very famous for hot chocolate around 6 Euros