Big Robbins is too much. I used it, and hated it. You can get the useful information from Medium Robbins and peek at big robbins only when the material gets to sparse. If Rapid Review is your primary, filling in gaps with medium robbins will be sufficient. You aren't trying to become a pathology powerhouse, so Big Robbins is probably too much. This is the 1024 page tome they call a "book."
Medium Robbins is a great reading book. There is text, paragraphs with full sentences, and pictures. It will easily fill in gaps missed by bullet points and outlines in Rapid Review. It is not overwhelming, and really is not a difficult read. You will not have all the details, but the information will be more explicitly stated than in rapid review.
Small Robbins blows. Especially in comparison to Rapid Review, there is almost no reason to use small robbins. This is the pocket text.
Bottom line, its probably too late to go back over material already covered, but if you feel you are deficient in some areas going forward, feel safe in knowing that medium Robbins makes an excellent choice to get the structure of a textbook without the innane details that don't matter.
