Google or Microsoft,who will win in next ten years??

This is going to be the mother of all battles. It is quite difficult to predict who is going to win. MS has been the unquestioned victor till now. Look at Sun, and others. Both are going to become stronger, but there is always the law of averages, and the other theory, that whatever goes up, must come down one day. So, who knows what will happen in the next 10, 20 or50 years.