I enjoyed both, but I think I liked neuroscience (they called it neurobiology I at my school) better because you briefly touch on the anatomy of the nervous system and then go more in-depth into the physiology of the nervous system (how nerve impulses are transmitted, the physiology of the somatosensory system, the spinal cord tracts, neurological disorders, and a lot of other interesting stuff). I actually think neurobiology might help a lot more for P/S because you go over sensation/perception (it might be different for your class though because some schools will separate sensation/perception for a different class).
I don't remember too much from my neuroanatomy class, but you do learn about spinal cord pathways, which I thought was very interesting. You go into a more detailed view of the anatomy of the brain (more than you would get out of a traditional anatomy class). I think you would get most of the anatomy you need from your neuroscience/neurobiology class, but some schools will require neuroanatomy or before you take neurobiology.