That is a tough call... I like them both for different reasons. I like the softness of the first, and how the head/neck sort of stands out, while the feathers almost appear as a soft background, rather than part of the main image, like a high aperture photo. And I'm quite partial to teal, myself.
I like the second, for the higher contrast, and the fact that now the whole bird appears more in focus... you can see much more of the detail now. Which is great. Just a different feel than the original.