Berkeley seems to really have it out for Chinese students. ALL of my students last year were rejected by Berkeley, even those who were accepted to schools which are technically ranked higher, and these kids are high performers. I heard similar reports from other high schools in the area.
I sort of discourage my students, especially those whose English is not terribly strong, from going to school in California. There are just so many Chinese students out there and it is way too easy for them to fall into little Chinese bubbles and never come out. This is true to some extent for most big state schools, but California in particular is bad for it. I have a couple of students who have completed 4 years at UCSD and their English is no better than when they graduated.
Wisconsin-Madison is a great school. I have an American friend who is doing a PhD in Classical Chinese there and his wife (who is Chinese) is doing a PhD in Anthropology and they both speak really highly of the program.