Microsoft Office's Access and Quickbooks are the leading software for business accounting. These software are very user friendly and would get your business running smoothly.
There is no such thing as a best business. The question should be, which type of business is the best business for you (if you are interested in business). Your choice of career should be based on a...
There is no one "best" accounting software -- different businesses have different needs and requirements, so it's really about what software is the best match for your business.
You should define...
The cheapest accounting software would be a free or shareware version of a payed one, technically. SAlso, some free, full versions are available but run by ads. Otherwise, you will pay much more.
Depending on what your are looking for in your software program. It will also depend on how simple you want it to be and how much you are willing to spend. A small business should be fine using...