It works like this. Ever watch "Who wants to be millionaire".
And remember the lifeline you have is to ask the audience for help. And most of the time the audience is right? Right. That is exactly the same here. You give them an array of devices, and the audience by buying (voting with their money) will vote for the best device. Simple as that. And they are right majority of time. So listen to the audience, i.e., the majority, if you want to sell the products. Not to the tiny minority, that happens to be here. Simple as that