Limitations of different CRM Concepts(CRM Online Vs On Premises , FetchXML, OData EndPoint and Advanced Find)

Hi Guys, I have been going through few articles,  I can see limitations of most of the concepts. Came up with an idea to incorporate all the limitations of CRM concepts which may help people who are new to CRM. The information is being grabbed from different resources. Limitations of Dynamics CRM Online Vs On