I find myself drawn to GOING POSTAL and MAKING MONEY, i think it has something to do with the way Moist von Lipwig (not Lipvig) just seems to be able (in the subtlest way possible) to put up the longest middle finger on a short person( well, i imagine him to be a short person) that you will ever see, stick it right up the **** of the sanctimonious big wigs and break it off at the same time as rubbing the idiots face in the fact that he has just flouted the law and got away with it because of "THE ANGEL on his shoulder"
Other than that i have to admit that apart from the two of them i can't put a finger on a favourite as it happens to be the one i have just finished re-re-re-re-re-reading!!!!