It helps me to pick a pattern by looking at the person I'm making the quilt for. This also helps me choose the fabric.
Especially when it comes to crib/lap quilts, theres so many wonderful childrens fabric available. Look at where and how the quilt will be used may help you also. Bed quilt? should coordinate with the persons room colors. The persons personality will help with colors and pattern as well.
Good luck and have fun.