C.S.
Induction of labor, whether it is breaking the water or chemical will more than double your chance of a c-section. Do not induce unless there is a medical reason for induction (either you or baby are in danger). Carrying your baby until your baby is ready is the most wonderful gift you can give your baby - letting him/her choose their own birthday. Your baby will know when he/she is ready to be born.
Breaking the water artificially often leads to baby being in a bad position for birth - leading to more pain for the mother and a much, much larger chance of c-section. Once your water is broken - you will likely be put on a 24 hour clock and if you have not delivered by that point, you will be told that the risk of infection has gotten high and now you need a c-section.
Let me know if you have further questions. Oh, if your doctor is telling you that you should induce because your baby is big according to an ultrasound, you should know that an ultrasound weight at the end of pregnancy can be plus or minus 3 pounds of accuracy. That's right - my baby who was supposed to be over 10 pounds was only 6 lbs. 4 oz.
C.