Do any of them have comprehensive standard libraries, and compile to small native binaries? Those features, along with performance and support for parallelism, are why I chose Go (for command-line apps).
Small native binaries don't seem like much of an advantage when writing servers. For command-line apps sure, but it sounds like OP was addressing someone who was writing a server application.
With GraalVM you can compile JVM languages to small executables with limited memory consumption. It's fairly new technology but people are using it in production.