>> who wrote the code, and how good were they with each of the languages <<

I'm repeatedly surprised when programmers don't emphasize how much comparisons can be about good programs and not so good programs, and instead drift into somewhat tribal language comparisons.

I kind-of think we know better but that knowledge just doesn't serve language advocacy, so it's not mentioned.

As we often we get hired by programming language, language advocacy has obvious importance to us ;-)