School depends on whether your kids want to be done w/ school after 4 years or want to go on and get their MS/Ph.D. UC tend to teach more theories, which would benefits those who go on to get their MS/Ph.D. CSU on the other hand tend to be more practical, which would be more beneficial if you go directly to the work force after college. If you have the money and your kids have the smart to get in and succeed at that level, try to shoot for MIT/Caltech/Standford/etc. It’s a little easier to get into the top companies (Google/Apple/etc). Example would be (guessing at GPA here) a 3.0 GPA ant those top universities would get you an interview those top companies but a 3.0 GPA at SDSU might not (assuming everything else is similar).
With regards to which discipline, I think it’s easier to get a job with Compsci vs the other engineering degrees. So go w/ Compsi if your kid like it.