They are very different styles. The AW is more casual and fun because of the colored studs. I have also heard that the AW bags are heavy because of the bottom studs. The DVF bag is more tailored, structured, and business-like. I think it depends on the look you are trying to achieve and your main use for the bag. Also, the AW is a shoulder bag and the DVF is handheld( unless the straps are long enough to go over the shoulder.
So it comes down to look(casual vs tailored), function ( play or work), and how you like carrying your bag( shoulder or hand held).