Hello from a fellow New Hampshire-ite
I have always been, and probably always will be a huge fan of Weight Watchers! I love it because it teaches you how to make the right choices, limit your portion sizes, and you can still eat that candy bar and not feel horrible! WW is a lifestyle change and it's something you can take with you no matter where you go and you don't have to stop eating your favorite foods.
I'm not sure if you have a preference to which 'diet' you will try, or if you are leaning towards others because they're better for you being pre-diabetic.
No matter what you decide to do, you're already on the right track you've already lost 27lbs *YAY YOU* and you have the right mindset of you're doing it for your health and your children, even though a new body is a major bonus
Good luck and welcome!