USC versus Occidental versus George Washington versus Boston U

I was accepted to all four of these schools with fabulous financial aid packages. I will be studying Political Science and plan to pursue internships, so I know that GW is best in that respect. I also adore DC. However, it’s hard to turn down the prestige of USC, and Occidental’s both social and academic environments are very appealing to me. I visited Boston U, and didn’t love it as much as I expected, but am I missing something? Boston just didn’t seem to have any life. Also, I will NOT have a car. Obviously I can get around Boston and DC relatively easily at BU & GW, but will I have any chance of regularly seeing downtown LA if I attend one of the Cali schools?