Minnesota,UIUC,washington & Lee, William & Mary
which one is the best among them?

thanks for suggestion!

not descision, just choice

I think all the schools you named are of very good rankings. A choice may depend upon one's liking/passion for a particular course as also the amount of scholarship being offered.

thank you
I just want to choose one to apply
I got WM last year, but I give up it because its rank a little lower.

UIUC

All these being good schools, the choice should rest with the amount of scholarship or better opportunities for TA/RA work.

thank you all
but I decide to apply only one of them
so.....

UIUC

UIUC