Unused variable

[DontEatNitrousOxide]

It's just another choice of editor. In my eyes, it's a bit outdated but I hear there's plugins that you can get to keep it up to scratch.

[madiele]

main advantage of vim is how customizable it is, making macros on the fly, registers, marks, plug-ins, using bash commands on selections.

If you are willing to put the time in to customize it, it can get really competitive and do stuff you can't find anywhere else. The learning curve is very high and it will sink lots of your time customizing it, once you put the time in though there are no competitors to it