GW is stronger in terms of location as there are more IR internships and other work experiences nearby. UW doesn't offer much funding, but I'm unsure if GE offers any either. Personally, I'd look at classes offered, cost, working opportunities, research opportunities, and general fit (e.g. I love cold rainy days, so Seattle is for me!). Make a giant list of this stuff, and I'm sure you'll have a better idea on where to go.