Haven't taken the test yet, so I can't say what's "best", but neuro is one of my weakest subjects and seems to be one of the areas where FA is seriously lacking. (Nothing on brainstem vascular syndromes? Did I miss this somewhere?)
In any case, I used Roadmap to help with Neuro during school and I just finished reading it cover to cover and I feel a whole lot better. Roadmap definitely helped my understanding a lot; although it may be a little too detailed in parts. I also used HY, mostly just for the images (CT, etc.) which are notably lacking in Roadmap.
Summary: if you're comfortable w/ Neuro and just want a quick refresher, I bet HY would be plenty. If you're like me, and still look for the dentate in the oral cavity, you might want to add something with a little more exposition, like Roadmap. Just my thoughts.
Edit: BTW, I'm sticking to FA & UW for embryo.