I love AW!
Like Westyslantfront, I start every day with the Picture of the Day, and then proceed to check out the forums. Besides all the fascinating information, photos, and neat people here I really appreciate the wonderful graphics (like Mr. Suds Lock, or the "Automatic Log-In" font) and the overall excellence of the software. I frequent a few other boards here and there, and while I enjoy them too there is nothing special about a generic interface. AW is just a cut above, and that speaks volumes about Robert's talent, knowledge, and dedication.