Scala  is my favorite language at the moment. I&#x27;ve used (professionally) Java, C#, Perl, Python, Ruby, Objective-C,  and Swift. I played with Go and started writing a simple library (<a href="https:&#x2F;&#x2F;github.com&#x2F;joslinm&#x2F;validate" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;joslinm&#x2F;validate</a>) to get acquainted with it.<p>Above all else, what always gets to me with Scala is its powerful generics. It truly is first-class. I&#x27;m excited for macros as well.