I don't want chocolate very often, I have a savory, not a sweet, tooth.
But when I do want chocolate, it is generally dark and ideally involves some caramel. I will also indulge in an English chocolate bar once every few months (Lion Bar, Toffee Crisp, Malteasers, Cadbury's caramel or fruit & nut, etc)
I also have a soft spot for dark chocolate covered orange peel or cherries, Charbonnel & Walker Rose & Violet creams, Quality Street (but only at Christmas) and Bendicks Bittermints (the latter are so very delicious and worth trying if you get the chance!)
I HATE chocolate with chilli, chocolate with salt, and caramel with salt - sweet should be sweet, end of!