I have plans to build my own solutions on the cloud in the near future. I thought Azure is a little easy to learn and then provision different services. I have chosen the platform to explore it.
I have studied several services. Azure Resource Manager is the one that I chose. In order to be predefined, Azure Resource Manage means, in most banks and financial services, a particular service with a particular configuration, with a particular security, and its governance policies need to be provisioned. You can define templates, and by standardizing those templates, you can start provisioning the service, which will help you conform to the organization's policies and governance, which I like about the Azure Resource Manager.