I would go with Buffalo the rankings are kind of a joke outside of the top schools and GW is not worth an additional 225k not to mention these loans accrue roughly 8% interest, which will be another 16,000 annually to be paying off.
This is my just two cents and I maybe I am completely wrong unless you are going to an ELITE school and ELITE means Harvard, Yale, Stanford, that level. George Washington is in D.C. and many people want to move there and you will be competition to get experience with Harvard, Yale, Georgetown students and realistically GW doesn't compare with those schools neither does Buffalo, but I imagine in Buffalo your only competition will be students from Buffalo.
With all that being I think where you want to end up makes a difference if you want to live in Buffalo then you should 100% go to Buffallo. If you want to be in D.C. then obviously go to GW.
The law school decision is a difficult one, but there is honestly no such thing as a "better" school all ABA schools literally teach you the same thing. You read Supreme Court cases and there is no special editions for different law schools it is literally all the same. If you go to a very prestigious school then the name itself might be of use, but at the end of the day you are either going to be a good attorney or a bad one.
As a sidenote the rankings are basically a joke. U.S. News is a for-profit magazine with no authority whatsoever the ABA, LSAC, and any recognized authority tells students to not pay attention to them.
Here are some articles on it directly from LSAC. http://www.lsac.org/LsacResources/Research/GR/GR-07-02.asphttp://www.lsac.org/LsacResources/Research/GR/GR-07-02.pdf
I would honestly get out of law school as cheaply as possible unless your going to an ELITE school, but that is my two cents and people have different views.