Should you ask BM opinion on their dresses? sort of long, sorry

I am having 8 BMs - two of my sister, two of his sisters and 4 friends. Well, 3 of my friends want to go to RK Bridal to see the BM dress that I picked out when I was there with my 2 sisters (one of my sisters had flown in from Kentucky so we could go dress shopping and we found my dress and their dress in one day! the day of the blackout actually which happened as I was paying for my dress!). What if my friends don't like the dress? I didn't really ask them for their opinion but I have a feeling they'll tell me if they don't like it. And then I think I'll get a little upset....Am I overreacting? Should I really expect them to just put on a happy face even if they don't like it? These are my college friends and we can never agree on ANYTHING so that's why I decided just to include my sisters on the decision...