[vbezhenar]

Debugger is like IDE. Most people use it and leverage their power, increasing their productivity. Some people insist on using primitive editors.

[VvR-Ox]

Depending on the problem / project both of them could be right.

I also use intellij for big projects but I prefer emacs/vim for little scripting stuff or tiny programs.

IDEs help navigate and refactor big stuff while editors have less overhead and force you to use your brain a bit more.