This video shows how to setup a fully functional Forge developer workspace using Intellij 2016.1. In my opinion, this experience blows the eclipse experience out of the water.. A followup with additional tricks is here: • HOWTO add your mod and the Forge tests in ...
As an addendum, here's an Intellij coding style file for Forge development. https://gist.github.com/cpw/08e3bde77...