take wherever the biggest scholarship is in terms of cost hunter is cheapest but in terms of understanding and flexibility wurzweiler is the easiest to hold down a job and be frum.Through their pep and block programs (your actual job can count toward your externship as long as it is approved and you do something a bit different your second year usually not an issue)and they have many gratis externships in frum organizations that will lead to paying jobs.
I know people that went to both Fordham and Wurzweiler (and two that went to hunter) everyone is at the same salary levels. You only really start to make money through private practice or dual jobs/long hours (ie work for more then one agency or do two different types of social work. At that point,(at least a few years after graduation) your connections and abilities will push you ahead. No one will care if you chose Fordham instead of Wurzweiler, Hashem should help if you are a good therapist you are a good therapist.
Additionally, you should factor in the ability to hold down a job while attending wurzweiler as opposed to unpaid interships and bad placements as dictated by Hunter and fordham.This will go a long way in terms of financial peace of mind for the next few years.Hatzlacha