1) What is the best HAES thought that you have done?
2) What HAES tennent would you like to incorporate, but have not done yet?
http://en.wikipedia.org/wiki/Health_at_Every_Size is a good overview of the movement, with lots of good links at the bottom.
I personally believe that while one can strive towards health at any size that they are, there are some people who have weights that prevent them from being the healthiest that they can be. For these individuals, WLS is a way to move towards HAES paradigms of treating oneself well, incorporating physical activity, and normalizing eating. I know my eating has really normalized itself since my sleeve. :-)
So, talk amongst yourselves :-)