hey, kylebrown, thank you so much for your comments!
yeah,i agree with you in that academics plays an important part in choosing the schools. whether the professors are doing research in some areas that attract you or not, whether you're interested in some of the specific projects or not...i actually have made some contact with several of the faculties from all of these three institutions, and all of them have left me an indeed nice impression. im sure im gonna have a good time studying with any of them. the thing is, im currently a master student from China, so i guess i have to finish my Ph.D. program in the US institution that im gonna choose, which means a 4-5 year time devotion straight, thus i really don't want to spend these years in some town that i dont really like. so yeah, i agree with you about your last part too. i personally think whether it is likely or not for me to make new friends there, or find my potential life partner or anything like that, holds its very significance. and btw, im a girl, not a guy=)
Thank you again:)
cheers,