Personally I prefer the kebab/dot conventions simply because they allow for easy "navigation" with (ctrl+arrow keys) between each part. What are your preferences when it comes to this? Did I miss any schemes?
I am a fan of Python's or Rust's official conventions.
For package names, tho, I don't get why this-is-used over this_clearly_better_system, as I would expect a double click to select_the_whole_thing, whereas it does-not-happen-here.
While i do agree, snake looks a lot better too. I just wish it was possible to navigate through each parts of the word more easily with ctrl+arrow. That would make it the superiour choice imo.