I had driven vw's DSG (quite often as I used to work for them) and Audi's S-tronic. They both behave more like a standard automatic if you compare them to PDK (Porsche) or DCT (BMW). The new 8-speed auto (experience from a 328i) from BMW is very smooth and carries the power in a very balanced way. However, I can't really make comparison between an auto tranny and dual clutch tranny.
Must stop eating..............