Easiest module out of Personal Tax, Business Tax and Cash Management?

I did cash and treasury management and credit control modules. I then changed class for the start of the core units and that class had all done the tax units. I think the tax units have better pass rates so you could argue that they are 'easier' however I think the cash and credit modules ease you into the core modules because a lot of the content within them is covered across the core units (e.g trends, cash flows, performance management ratios). The cash and credit exams are also in the same format as the core modules in the sense that they contain written questions. Those in my class that did the tax units are struggling with the writing content now.