Atom looks fun but a bit OTT for me.
I’m surprised you didn’t include 2nd most popular IDE, Visual Studio. I use the free version.
VSCode is most popular and even used at Google. I also use it occasionally.
I also use VS for real-time trading via IB's APIs. LOL ... I clicked Visual Studio Code in the poll before I caught the difference. Started writing trade modeling systems in the 90's using VB6 ... back when that was the thingI’m surprised you didn’t include 2nd most popular IDE, Visual Studio. I use the free version.
. As time went on I continued to use VB6 in the form of VBA, which was a nearly effortless transition for my code set ... still use it today for historical data handling and analytics. I looked at VB.net, C#, later Python, and others ... but never found compelling benefits for the time needed to migrate. The system continues to use the VB6/VBA proprietary datastore, and has always integrated well with the dashboard, UI, & charting capabilities in Excel.