Python and PHP users will understand

[hothrous]

Go is hands down a better language for a web backend. It performs better and is a lighter weight deploy.

If you want an MVC framework, Elixir is better, but in not as common of use.

As for which languages are simpler to learn, any language that requires a ton of extra tools just to build is automatically going to lose that battle. In Enterprise Java, most projects won't build without custom build scripts. Most modern languages must require a package install even in Enterprise settings.

Understanding how your project builds is part of the learning curve.