No, I haven’t chosen one to use yet. But I kind of feel that instead of investing more time in home-made and fairly inefficient DI classes, I should rewire the code to use one of the available IoC frameworks. And here are some blog posts that can help to make a choice.
Having read these two posts, I’d probably go with either StructureMap or Autofac. But I would also like to have a closer look at MEF that was not covered in these blog posts (I guess because it’s not a pure IoC container). Here’s an excellent Ayende’s post explaining why.