There's definitely more out there than Sternberg & Rosai, though they're more common and seem to have the most traction and expectation for future editions/updating/etc. Silverberg includes more cytopath ("Principles and Practice of Surgical Pathology and Cytopathology"), if you're really looking for an "all inclusive" type text. When I was buying, Rosai seemed to have better pictures and I liked that it was all written by one person, so the flow was more consistent. But, in retrospect, Sternberg might have suited me better because of the tables and relatively easier readability. You can read a paragraph in Rosai like 6 times and see something you missed each time, it seems like -- no easy skimming, IMO.
In the end it's a personal preference. As much as I understand new residents wanting to get a good book and get going with it, I recommend waiting a few weeks and looking through the program library or a buddy's copy of each, multiple times with different entities, and see which one you'd really rather keep looking at going forward. This is not a cheap pick-up, and you're highly unlikely to buy more than one big 2 volume set at least during residency.