Northwestern will be very hard to get academia from. Not impossible, but don't count on it. So the question is, are you find with just practicing law if you don't get academia?If so, then the NW sounds fine. If not, reapply and go to HYS. You should at least get into H.
I have some sort of a beef with this argument; getting a job in academia is very hard from anywhere. One of my best friends is a Princeton undergrad, Yale JD cumma sum laude, and worked for Wachtell for several years; he got rejected numerous times before getting a shot at teaching at a law school. It just stands to reason that this is one of the most difficult career paths you can possibly have.