Agreed. On the server side my vote is for Python. I think it is a better all purpose language. So if you have scientific, engineering, or mathematical parts of

Agreed. On the server side my vote is for Python. I think it is a better all purpose language. So if you have scientific, engineering, or mathematical parts of your app, there will be lots of libraries to help you out. All though if I started out today with zero knowledge, I'd be tempted to be lazy and just learn Javascript on both the browser and server side with Node.js.