Go. I'd definately move it to #1 on your list :) I've been using Go for a while now and I gotta say the more I use this language the more I start to love it. It

Go. I'd definately move it to #1 on your list :) I've been using Go for a while now and I gotta say the more I use this language the more I start to love it. Its incredibly well thought out, the libraries are powerful and well designed, the documentation is clean and extensive, plus its a great mix between High and Low. And, in my opinion, as much as I like node for letting me do js on the server, Go does it better.