You really have to try them all to work out which one suits. Some people love Xero, others hate it and love MYOB, and others adore quickbooks/Reckon. Saasu is probably the least known of them all, but again, it comes down to what you are comfortable with.

Sign up for the free trial they all offer, get some help from your accountant/bookkeeper as to how to use it, and try and process everything you would do using the demo company to see what happens. BUT be aware - don't try and set your data up yourself, get your accountant/bookkeeper to do it. It will save a LOT of hassle down the track.

As Kirsty said, the easiest accounting software package for small businesses boils down to personal preference and what you are using it for. Xero, QuickBooks, Reckon, Sassu (and many other accounting software programs) are designed with small business owners in mind and have excellent resources to equip you with what you need to use the various tools and functions. While there is no one-size-fits-all approach, Xero is arguably one of the easiest accounting programs for small business owners.

Some of the features that make Xero such a user-friendly accounting package include:

1. It’s cloud-based - meaning you can access it from any computer or mobile device with an internet connection

2. There are 500+ tools available to tailor the program to your business’s requirements

3. It’s very easy to collaborate with your bookkeeper or accountant

4. Automatic currency conversion

5. Automated bank statement feeds

6. User experience is on point - Xero has one of the prettiest user interfaces which makes accounting far less daunting 

7. It has an award-winning 24/7 email support team

The key is to read comparison guides and user reviews to help you decide on the right package. I would also second taking advantage of free trials to get a feel for different programs and how they work for you. Hope this helps.