41, 3 kids, currently 100 kg. Is a body lift or tummy tuck a better option? (Photo)

You should wait until you have lost weight after your lap band surgery, and after the weight is reduced, then I think it is likely you will need a body lift. If you have it done before the weight loss, then you are likely to need the surgery again. Good luck with the weight loss, Dr Steve Merten, Sydney

If you're going to have lap band soon, wait until you've completed that and adjusted to it. It's likely exercise will be easier for you as you adjust following that surgery, prior to consulting with plastic surgeons about tummy tucks and body lifts.
A tummy tuck would address excess skin and fat in your abdomen, while a body lift would address excess skin and fat from the abdomen, hips, outer thighs, and buttocks.
If you are still undecided about lap band, go ahead and consult with a board certified plastic surgeon now about your concerns and goals to know what surgical options might be available (without lap band surgery) to help you address your concerns and meet your goals.
Either way, a board certified plastic surgeon can help you figure out whether a tummy tuck or a body lift would better suit your during a consult.
Best wishes!