<prompt> Human: My wife and I are having a huge difference of opinion and Id like some educated opinions so I can either bow down to her infinite wisdom or brow beat her with, what appears to be, common sense to me.Heres the situation: 120k in high interest 8 student loans 159k and 13 years left on 15 year mortgage 3.75We got lucky and got a great deal on a house 180k that weve updated and now, just two years later, is being valued at 230-240k because the neighborhood has become extremely in demand. To provide validation to that, there have been and still are, new communities being built up that are starting in the 400-700k range that are selling like crazy so we, being an older community homes were built in the mid-90s are essentially the low end entry point for people to move here and homes on my streetsubdivision are, literally, selling within 2-3 weeks.So, heres the debate: My wife wants to follow the traditional pay the highest interest rate firstalways so she would like to pay the student loans and mortgage simultaneously making the regular mortgage payment and putting as much on the student loans as we can afford 1500mo. While it seems like a good approach, to me it sounds insane because we will be still paying both in 10-15 years and paying interest the entire time.My opinion is that we should sign up for a student loan program we were offered to lower the payments to 400mo and then switch the mortgage over to bi-weekly payments shaving off 1.2 yrs and also making double payments which, by the online calculators, would pay the mortgage in 5 years. While we would be accruing higher interest in the beginning by not making a dent in the student loans, the interest saved on the mortgage and paying the student loans in full in 3-5 years would be the more sound financial decision than carrying the interest for a decade or more on both.Please, help us settle this debate and provde a little clarity to which path would truly help us get out from under this mountain of student loan debt and the stress, anxiety, and emotional torture that comes along with it.While we would be paying extra interest for the student loans, we would also save close to 30k in mortgage interest and, at around year three, we could sell the house and use the proceeds to pay off the student loans in full at that point and still have enough left over for a down payment on a replacement house.  <response>: Listen to your wife. I dont think youll pay able to lower the payments to 400 anyways, because right now youre accruing about 800month in interest.Theres no ifs ands or buts about it, if you want to pay down debt the fastest, you pay highest interest first. 