Expose to the Right or Expose to the Left. Does it matter? Part 2

In Part One we took a look at how images looked when using various levels of exposure compensation. In this second part we'll take a closer look at those images to see what kind of noise is present. Is it still better to expose to the right or to the left or does it matter? You can click on the images to view a larger version. I think once you review the images it'll be pretty obvious which exposure method is better.

+3.0

+2.7

+2.3

+20

+1.7

+1.3

+1

+.7

+.3

+0 but after clicking auto button

-.3

-.7

-1.0

-1.3

-1.7

-2.0

-2.3

-2.7

-3.0