Who is the designer of your wedding gown??

Although I haven't begun dress shopping, just flippig through magazines I am definitely drawn to Maggie Sottero dresses, as well as Sottero & Midgley? Which makes me ask what the difference is between the two? Is one line more afforda ble than the other?
I am also loving the dresses by Mori Lee, both bridal and bridesmaids. I actually looked at dresses at David's bridal about a month ago thinking that they were most affordable, and then noticed that the same style bridesmaid dress that I saw in David's Bridal was 30 dollars cheaper in the Mori Lee line.
I heard RK Bridal in Manhattan is a great store with an amazing selection.