Who has a 15 year mortgage? What led you to that decision? How much are you able to contribute to savings with the higher mortgage payment?
DH and I are going to refi (we did a cash out refi late last year and are ready to reset our rate. We are debating between a 30 yr fixed and a 15 yr fixed - the difference is $700ish/month. But it locks us in to a great rate (3.3%).