I think my five favorite Pagan values are in fact Pagan, even if not every Pagan holds them, and even if non-Pagans hold (some of) them. Why? Because they're values that arise from (many kinds of) contemporary Pagan spiritual practice. And while they're not uniquely Pagan values, strictly speaking, they are values that other religions I know of don't hold as spiritual values. So these values are intrinsic to the way I practice my religion and to my spiritual life, but they're not intrinsic, as far as I know, to other religions or spiritual practices.
That's my rough-and-ready definition of what makes something a Pagan value.