I am a current student at University of Rochester. Freshman. International student. I am looking to transfer to Northwestern, Cornell, upenn. My College GPA is 3.87, the professors were tough. I had a International program in American high school for a year with a gpa of 4.29, and 4.0 in China. My SAT is not high 1450. With two SAT subjects, Math 800, physics 780. Four APs. I had a great relationship with my profs, so I got recommendations. I also have guitar art portfolio. My intended major is CS. What are my chances to get into these schools? What can I do to increase my chances
The big question is why do you want to transfer? Transfer admission rates at the schools you cite are lower than freshman admission rates and they are not necessarily much better for CS than where you are now.