After working with es6 for a bit (with babel), I still think I prefer CoffeeScript mostly because it's annoying to ensure brackets/parenthesis are closed properly.
Its funny, I used to really enjoy CoffeeScript but since Babel / ES6 has come out I can't stand it anymore! ES6 has just the right amount of syntax, with lots of optionals too (semicolons, no brackets when writing function expressions, etc).
I compile JS files to CoffeeScript now only for the readability boost when I need to understand the code very quickly without all those parentheses or brackets getting in my way.
