Seriously, though, Hayek has about as much in common with Rand as Locke has in common with Rousseau.
As for my opinions on those other philosphers:
I think Lock's ideas have tremendous utilitarian value but little foundational validity.
I despise Rousseau as the "father of modern totalitarianism" (I independently came to that conclusion before I ever heard that quote).
I am neutral about Rand (extreme partisans on either side bemuse me-which seems to mean that most people bemuse me). She makes the same mistake as Marx, in mistaking an important insight into complicated reality as the dominant aspect of human society-unlike Marx, her philosophy has built-in safeguards (both intentional and unintended) that prevent abuse at a societal level, so her ideas have been a net benefit to humanity IMO.