I'd go with Javascript / Node.... 1 JS is universally deployed (1 language to learn) 2 JS works pretty well as a functional language, which is becoming much mor

I'd go with Javascript / Node.... 1 JS is universally deployed (1 language to learn) 2 JS works pretty well as a functional language, which is becoming much more important of late 3 Node(still a work in progress) covers the server side too, and the result is a scalable, single language solution.