Macbook Air or Retina Macbook Pro?

I am trying to decide between the 13in Retina Macbook Pro or the 13in Macbook Air. I love the screen on the Macbook Pro and the outer black layer of the screen. I would get the fully upgraded version of the Retina Macbook Pro so the processing speed should be better.

The Macbook Air on the other hand is super light and have heard it's the best all around computer too. I would get the fully upgraded version of that as well.