<quote>AUD can be easy if you have worked in the audit area.</quote>

Everybody seems to say that but I don't see how the experience helps you with these questions.  I have auditing experience and these AUD questions are still rediculous.

From hardest to easiest:

1. FAR due to the huge volume of information.
2. AUD because I have absolutely no audit experience and am least interested in the subject.
3. REG and BEC about the same, probably because I am a tax person and former IT person with a finance and economics background and interest in these topics.

For me it was:

REG (the hardest test and and most time pressure)-- used Becker with the Wiley book for questions

FAR (the most information and some impossible sim tabs) -- used Becker alone

AUD (hard as hell to study for, you could almost take this section without reading anything and just doing questions) -- used Becker with the Wiley book for questions

BEC (easy for me since i just got an MBA in finance, only exam I walked out of confident I passed) -- Used Becker with the Wiley book for questions

It really depenes on your background.  

For me from the hardest to easies, FAR-AUD-BEC-REG ( i work for the CPA firm and i have tax experience,  just a little bit audit work). So i think REG is the easiest. FAR is hard becasue of the huge volume.

BEC is a little bit tricky. It seems easy, but it is not.