[_Dude_]

C# - it just keeps constantly evolving. Supports dynamic/static, functional/imperative, OOP and language-integrated asynchronous programming models. It gives you a nice balance between performance and features like introspection. Also ReSharper + Visual Studio will give you the best IDE in the world.

[_Dude_]

Python could be a decent choice as well:

http://blog.udacity.com/2012/05/learning-to-program-why-pyth...