Sadly, I don't think Facebook has the right to sit among these companies. All three of these companies push out software that has a substantial impact on the world and push out more than just one product.

I know Facebook has made a definite impact on the world, but what else does it do except for being facebook. They really haven't actually given anything back to the world except for social aspects.

This might be a losing argument, but I can't see facebook sitting among any of these companies in competition. These three are in direct competition with one another. While facebook partners with MSoft.