I like almost all colors, but it would be hard using a fabric i hated. I don't think I would ever agree to making a quilt for someone who wanted to choose every fabric I was going to use. From what I've seen, non-quilters have a hard time visualizing how all the fabrics will work together in a quilt. So I might have them pick a couple of main prints with the understanding that I would possibly pick more to make it all work. What I have done, is take the person shopping to show me colors that they like and types of prints they like and dislike, so that I can choose based on what I know they are going to like. So far that has worked well for me.