"Pop Album" vs. "Rock Album": Which Do You Prefer?

I think the way the question is formulated sends us down the conversation on authenticity: a pop album thus defined would tend to feel superficial and boneless, borrowing and using pastiche instead of finding the true coherence only attained by the true songwriter (if that's what "single-origin" means). Actually, the rock album does not sound much more exciting, it will have more bone but it already sounds samey, authentic but with limited appeal and no genius, a collective effort where no one stands out ("ecumenical").

Probably 95% of albums fall within those two categories, but it is indeed the exceptions that transcend those categories that strike the imagination.