Umm, where's the pixel art at? I think if this is a general question to people here, it should be posted in the "General Discussion" section, not pixel art. That is unless, you have a piece that you'd like to add AA to, or learn with. Then I would try and show you where it is best applicable. Better yet, some of the better/more experienced pixel artists would assist you. Either way, I think you would get answers in the general section.