Does anyone have documentation comparing different GIS softwares? The idea is to present a comparison of software that allows to justify why I propose to use ESRI technology in a project

Question

I am preparing the documentation for a project, the client asks me to justify using ESRI technology, it seems to me that arguing that ESRI is the best software has not served them 
 I have to present a comparison between different GIS softwares, at least one of them has to be free software, preferably QGIS. The comparison has to be at a functional and economic level and has to justify the proposal for the implementation of ESRI GIS applications, I thought that someone could have this documentation ready and could do me the favor of sharing it

María_CristinaAlonso_Serrano · Answer

Lovely, thank you very much

DerekLaw · Answer

Hi Maria,

> I have to present a comparison between different GIS softwares, at least one of them has to be free software, preferably QGIS.

This link might be a good place to start, 27 Differences Between ArcGIS and QGIS

Hope this helps,