It depends on how you eat the chocolate.
Just like with headphones or speakers for music, basically all of them are about the same "quality wise"(Quality of the sound coming out, not the punch of it) if you run them at full blast. All of them being about equally shite. Where the differences come to life, however is when you take it easy and run a fitting song that's well recorded and at an appropriate volume. Only then can you enjoy the various aspects of the sound, only then can you make out each of the instruments, the sound stage... etc. If you just let it blast out its guts, they'll all be equally bad.
The same goes for chocolate. If you gobble it down, there is little to nothing to be appreciated. It won't matter much whether you're going for premium handmade chocolate or just the standard stuff from the local super market. When eating good chocolate, allow it to melt in your mouth, only then will you get to taste nuances of it.