If you don't care which procedure, consider this. If you get the lap band you have work HARD for that weight loss. For example, my body only burns 1300 calories a day. So I have to eat 1000 to 1100 calories a day to lose weight. This is hard! I write down everything I eat, blog about my feelings, and actively make hard dieting/lifestyle choices to do this. Also, my weight loss is slooowwww... like 4 lbs every 6 weeks. So, are you willing to do the work? Are you willing to excercise at least 4 times a week? Will you be upset if the loss is slow? If the answer is no to those, consider the RNY.