As a PGY-1 path resident, i can say that rosai is my favorite. Unfortunetly, I purchased sternber, which is an excellent comprehansive text, but it talks way over me. I think as a PGY-3/4 it would be perfect, but when i try reading it there are several aspects that discourage me:
1. With sternberg there are multiple authors, there is no one cohesive voice and the tones are different for the chapters
2. the book assumes you have a pretty good background/jargon of the field and talks over you as if you're a PGY-3, which is extremely frustrating as a first year. At times i'm left more confused.
3. There is no general intro/appendix. Rosai has a general intro, appendix on how to gross/how to write reports, sternberg just delves straight into the facts.
4. Rosai is just plain easier to read. With sternberg, at times i feel i'm in class again zoning out.
My only problem with the old rosai (8th edition) is that many photos are black and white, a no-no for path! I think rosai is due to come out in either Feb - April 2004 with all new photos in color, new chapters on molecular bio/immunohistochemistry/more appendix etc. Can't wait.
Also, good are Lesters Manuel of Surgical Path and the Differential Diagnosis. If i had to recomend books for AP, it would be these: Rosai, Lester and The differential diagnosis. That's all you need, stick with them. Make them your bible, read them from cover to cover.