That list should be published predominantly all over the western world so that the ordinary joe can decide if he/she wants to continue buying these products.
Its different for me.I prefer instrumental music,so its not too hard to pick a best vocal.On the other hand,if I had to pick a best instrumental,then there would be 4/5 maybe even 6.
We have the same thing here with Bobtail lizards.If you put food out for them on a regular basis they come and even wait for it,but apart from getting fed,I dont think they consider us as friends,just someone that brings food.