Tbh.. Anish has a good point. Ardouge does have a wide variety of places to put shop's, banks, etc. Thieving could be a good money making method, so it would be nice to have the money making method right at your home. My vote goes for Ardouge. On top of that, it's un-orginal. The only minus for ardouge is, it's in the middle of nowhere.
Lumbridge isn't a bad place either, plenty of space, plenty of banks, and some good skilling places.
Al-kharid is a good spot also, but I don't think it's big enough.
Camelot is plenty big, plenty of place's to skill at, and their is a bank, and a close my training area (rock crabs).