You might have already made a decision.
If not, you might want to know that Rice often requires students to spend at least one year living off campus and thus outside of the residential college system. Students are picked depending on the extent to which their particular choice of undergraduate residential college is short of housing and, if picked, they have to live off campus for a year.
Because you seem to be enamored of the college system, you might want to take this into consideration. For obvious reasons, Rice doesn’t advertise this fact.