help to choose what CFD software
 

Hi
I want to work on simulation of spray and combustion in GDI engines. I have not select a CFD software to start working and need help to choose between CONVERGE, ANSYS forte and AVL fire.
I have founded that CONVERGE is very user friendly and make mesh easy
can help me to understand what major difference between these 3 software?

Thank for your replies
HADi