What is the best beach in Western Australia?

I hope I am not asking too much, but I would really appreciate if someone would tell me which would be the best beach in Western Australia. I plan to go there this summer, and I managed to find some information on the internet, but I think that it would be much better to hear it from someone who actually lives there, and who knows what he or she is talking about.

I honestly think that there are no unique public opinions when it comes to issues like this. In my opinion it is individual and different people like different things, so thus it is impossible for all of them to consider the same beach to be the best. In my opinion, Turqoise Bay and Claytons Beach might not be the best, but they certainly are among the most beautiful ones in this part of the world.