Sorry to bring up an old thread that's had every topic discussed to death, but I've been looking for a discussion like this for a while (not sure how I missed this one) and it's been very informative.
As someone who has decided to jump into a language to bolster my resume, I'd love to ask here in 2015 what language my time is best spent on. I've got a bit of experience in Python, and will probably continue to add skills in that area, but I'd really like to add C++ as well. Is this a wise decision? Currently I have nothing but time...