I would like to see AH get true support for the 16:10 and 16:9 aspect ratio monitors that are out there now.
Right now you can set those resolutions, but you lose the top and bottom of the screen, which makes it noticiably harder to fly and fight as some controls are no longer visible.
Instead of clipping the top and bottom of the screen off, I would like to see more added on to the sides as Half Life 2 and World of Warcraft do when displayer on 16:10 and 16:9 aspect ratio screens.