I'm quite familiar with Ayn Rand's philosophy. I understand the Objectivist point of view. However, I arrived at the conclusion that morality is subjective after careful reasoning and studying the writing of various philosophers, such as JL Mackie, Freidrich Nietzsche, and Richard Joyce.

I encourage you to explore other philosophical viewpoints (despite Rand's injunction not to do so), and come to your own conclusion. I think that the case for the subjectivity of morals though is just as strong as the case against religion and free market fundamentalism. They are all illusions you have to break free of. Once you are free, you will realize that Rand's ideology is extremely rigid, contorted, and biased. As well as full of logical holes as wide as the Pacific ocean.

That said, I agree there are some significant problems with utilitarianism, and I'm currently in the process of trying to figure out exactly what system I subscribe to. Utilitarianism is just the closest to what I have in mind.