I mostly use Elixir and JS, and I'm constantly surprised by how much easier and better the code quality is in Elixir, especially given the much smaller training data. I've started to use it for all my personal projects. I think Elixir's terseness, introspection capabilities, and strong ecosystem-wide quality guards really help.

At work, we use C#. I'm shocked at how much worse it is. I've also used a bunch of Python, but I still feel the quality isn't as good as the codebase grows, but I didnt put as much effort trying to improve it.