Coming here to say this. OP, you sound similar to my youngest who had multiple acceptances from your list last year. Harvard, however, was crossed off the list before the application season after a visit, when we found out they’d graduated only 8 EE students from their ABET-accredited SB program the year before (there is another track you can take that is not the bachelor of science and is more entrepreneurial focused).
So I’d recommend doing a deep dive into each college’s curriculum and “tracks,” if any (Yale has a similar, non-ABET option for engineering).
I also second the responses on not taking on the UC application if you a) probably can’t afford it, and b) are only applying to UCB when you have such a great in-state option. Again, you are like my kiddo, who would not give up the idea of the UCs and suffered through the very very different UC application during an already highly stressful application season. If I could magically have controlled any part of my kid applying last year, it would have been to say “no” to the UC application.