What is your out of pocket expense for all your universities, and do you have direct admit to any of the CS programs?
Every one of those schools will be competitive and have big classes since they are all public schools. Even private schools like Stanford have 800 people in their first computer class. In this day and age, the class sizes, at least for Berkeley it doesn’t matter that much since the large ones are always webcasted, plus the discussion and lab sections for the classes are always small.