@Lindagaf Wow, thank you for such a detailed answer! It’s given me a lot to think about. I honestly don’t know if I’m a “grow where you’re planted” or a “grow when planted in the right place” type of person. I go to a small, competitive high school, which I’m guessing would be more like WUSTL, where even if you get great grades, you’re not at the top of your class because there are others just like you. Although I’m not really one to talk about intellectual stuff, discuss politics and philosophy outside of class, etc., I definitely like that environment. I’m not really a very outgoing, extroverted person, so I don’t know where I would fit in better; probably WUSTL, because it’s less of a party school with less emphasis on Greek Life. However, the U of A is much more generous with offering AP credit for classes, so I might even be able to come in with sophomore standing.
Being from CA, I’m guessing you see more U of A grads than WUSTL grads, simply because of the distance. Would the better career services/advising from WUSTL equalize the proximity of the U of A to California in terms of finding a job?
My mom wants me to go to WUSTL because she thinks it would make me break out of my comfort zone by being in such a new place. I feel like because college is so different than high school, I could do that at the U of A also. That said, it would also be nice to have a friend group to fall back on at the U of A. I know many people who are going there. I wouldn’t be going home every weekend, but it would also be nice to get a home-cooked meal once in a while. Also, I’m 17, and I can’t ignore the fact that the U of A has some of the most attractive students 
Honestly, I am so confused and do not know what to do. I am going to a summer orientation at Wash U next week, so I’ll get a second feel for the campus. There are about two weeks in between when I get back from orientation and the deadline to accept the U of A, so I’ll take it from there.
Also, if worst comes to worst, once I get a better idea of what I want to major in, I can transfer to USC and be in CA.
@EllieMom If I go to WUSTL, I think I will major in Systems Engineering, and if I go to the U of A, I think I will major in Industrial Engineering. This is not set in stone though. I’m also thinking of Computer Science, EE, Accounting, and going to med school. I’ve heard that for these professions, the name of the school does not matter as much.
@eyemgh At the U of A, I would major in Industrial Engineering, and at WUSTL I would major in Systems Engineering. However, this could change, as I am also thinking about Computer Science, EE, Accounting, and medical school.