Honestly, I would not expect you to get into any of those universities. Like Vicente said, the UC's in particular accept a much smaller number of international students than the private universities, and the private universities don't accept that many in the first place. I've seen plenty of international students with 990 on the physics GRE get rejected, and most that are accepted have a score above 900. If 90% and above compares to an A in an american university, your grades are good but not incredible, and your research is good but not excellent. You really have to be the best of the best to get into a top 5 school as an international student. You might have an OK chance at san diego. Pick some more second tier schools. Don't worry, they are still excellent and there are many famous professors doing excellent research who are not at a top ten school. Stay away from the upper-tier UC's and compare your gre score with the average gre score of the students admitted at http://www.gradschoolshopper.com
. As an international students, you'll want to have a physics gre higher than the posted average.
Here's some examples of what I'm talking about:
http://www.applycorner.com/graduatescho ... p?uid=1120
First in his class in hong kong with a gpa of 3.6, 760/510/4/990 quant/verbal/writing/subject. Rejected from Princeton, Cornell, Stanford, CalTech, UCSB, MIT, UCB, UCSD, UIUC, accepted to University of Maryland. He writes well in English.
http://www.applycorner.com/graduatescho ... p?uid=2088
3.3 gpa, 3 years of research experience, 2 conferences, 780/570/4/870 Q/V/W/Subject, rejected from Berkeley, CalTech, and MIT
This is all just my opinion and I'm just another student like you. Keep reading things online, research grad schools as much as possible, look at the rankings and the statistics, read what the physics programs say about admissions on their websites, talk to as many people as possible who know what they are talking about, and you may form a different opinion. Maybe your summer research is really compelling, and I'm sure your lecturing experience will help, but you need more than good grades to make up for you GRE score and only one summer of research without a publication.