What is the best IDE for Beginners?

IntelliJ works with codegym, you can verify tasks and access the help section if need be directly from it. Other than that it really is preference. I have worked with Visual Studio (not code) in the past and think it is better than IntelliJ because I understand the debug tools it offers. I have never used eclipse so have no opinion on that. If/when you get a job as a programmer the company you work for may force you into one. I have no idea what the industry standard is or if it is different every place you go. With all that said, if you have no experience I would definitely recommend IntelliJ because of the codegym integration.