I don’t think there are major differences between Rand and Libertarians. I didn’t know Rand ‘loathed libertarians’, unless she was speaking of the leftist ones, the kind that vote for green party folks and obama, these folks aren’t real libertarians anyway. Atlas Shrugged, one of my favorite books epitomizes libertarian belief. I consider her one of us. :)
I think Objectivist and philosophical libertarians have a lot in common, just as Conservatives and philosophical libertarians do. It is the parties who take on the mantle of the philosophy that often stray.