It depends on which platform you prefer and which programming language you feel more comfortable with.
With Microsoft Azure, you can use Visual Studio and C# to develop your apps, there are a couple of links it may help you to get started with this platform:
You can also use nodejs, python or java to develop your apps
The Intel Iot Platforms: Cloud Analytics is a very useful tool and you can find in the communities a lot of helpful information regarding this tool.
There are two examples that you can check:
If it is your first time using cloud services, I suggest you to use the Cloud Analytics; it is a simple tool and you can find a lot of information and help in the community.
I hope this information helps and gives you an idea on how to continue with your project.