I realize I'm not answering the "review book" question, but FWIW...
I have a handout from the CAP residents forum - "
Almost Everything You Wanted to Know About Path Board Exams But Were Afraid To Ask" by Drs. Charles Abbott and Michelle Barry. They reported results on a Dec 2005 online survey sent to all individuals who passed ABP primary exams in '03, '04 and '05. Respondents n = 149.
For General AP, the top two were Robbins and Osler.
For Surg Path, Rosai and Sternberg.
For cytology, Baby Demay and the current Bethesda guidelines.
For general CP, Osler was waaay ahead followed by Henry and Clin Lab Pearls (Jones).
Blood bank - was kinda meh. Harmening which came out top was listed only 6 times. (I guess most people used Osler??) Petrides was listed 5 times.
Chem - 4 listed Christenson RH's Appleton & Lange's Outline Review of Clinical Chem
Hemepath - 19 for the WHO blue book
Molecular - the test area in which respondents most commonly expressed the sentiment "I wish I studied this more". 2 listed Diagnostic Molecular Path by Leonard.
It's a fairly large handout that our CAP Residents' Forum rep made copies of for us - go talk to yours for the rest
There's like travel tips and what to expect in the exam etc.