I've recently been getting into BDD and think it holds great promise as a way to get a stakeholder's voice back in the apps we, as developers, create for them. What's your favorite BDD framework and why?
My personal favourite is MSpec since I really like the integration with Resharper. Using BDD style tests reads a lot better for me and MSPec is a nice, light framework to use.
Here some other popular frameworks:
EDIT:
I've started using StoryQ in the past month or so, and have found it to be really good. In fact, I'm preferring it over MSpec. Will see how things turn out.