Stanford takes a few dozen transfers per year, and appears to heavily emphasize non-traditional students in transfer admissions.
Of the usual “top 5” for CS, UCB takes by far the most transfer students (151 admitted, 128 enrolled in EECS, and 63 admitted, 48 enrolled in L&S intending CS for 2018). See https://www.universityofcalifornia.edu/infocenter/transfers-major .
If you enroll at UCI not in the CS major, you need to pay attention to the change of major criteria for the CS major:
https://www.ics.uci.edu/ugrad/policies/Change_of_Major.php
https://changeofmajor.uci.edu/school-of-information-and-computer-sciences/