Actually ACCA is for industry (finance, management accounting, internal audit and risk management) and public practice ( audit, insolvency, tax, consulting) - it is very flexible. ICEAW is an audit firm based qualification since you have to work in the firm before graduating, CIMA is a pure industry qualification.

MIA does not need any audit experience, as long as you have fulfilled the acca membership requirement you will get it.

MBA now days is getting crowded, unless you do something really awesome - it might not add too much value.