I agree with vernice that the fastest way is not always the best way and with suzanne that US address indeed does not make a difference.
CA BON usually finishes processing your application within 6 months. Some are luckier because they got their eligibility by the 3rd month, in Vernice's case, by 2 months. If you want to apply for the CA BON, you have to call them and inquire about your status if you haven't received your eligibility within 6-8 weeks. Never call them before those weeks, because that will just delay the processing. (That is what's indicated in their instructions) Their ATT is also good for a year, so that's a big advantage especially if you are not really ready to take the exam yet.
Vermont BON, however, process applications faster. They said that the processing takes 3-4 months, but I got my eligibility within 2 months, probably less than that, if they only indicated that course description is also a requirement. Unfortunately, their ATT is only good for 3 months.
You need to take into consideration that if you decide to apply for licensure in Vermont, you will also apply for endorsement because your relatives are living in California. The time you spent with applying for licensure in Vermont plus endorsing your license to California BON (after you pass the exam) is just like applying for licensure in California, you get what I mean?
Well, i learned it the hard way.
I should have listened to Suzanne.
Anyway, before you decide, you better weigh both their advantages and disadvantages. Good Luck!!