[dagw]

Honestly by far the biggest difference between the two is the difference in underlying language. Assuming you already know JavaScript the big question you should be asking yourself (depending slightly on what other languages you already know) is, "do I want to learn a completely new language, with a rather different way of doing things". The answer to this question is far more relevant than any differences or similarities in frameworks.

[luriel]

Other differences include: Go actually scales in multi-core systems and completely avoids callback-hell.

Also learning to is much simpler than learning JavaScript, there are fewer pitfalls and reading the spec is easy.