I'm using the Aragasnow .... because I went with a dsb and also because I like the look of the finer sand better. I did, however, use a small amount of the flakes on the top layer to give a little variety and help keep the sandstorm down. I've been able to get the flow strong without a total sandstorm but it still does move the sand some and create it's own landscape - which I don't mind, looks natural to have some peaks and valleys. And I've also found that once the sand 'ages' a bit it moves around far less .....
Think it's going to depend upon what you like, and what you are looking for out of your tank and substrate......