I agree that it is virtually impossible to chance you without knowing your ECs. Saying they “are decent and compare to most people admitted” is a relative measure, and I cannot gauge your accuracy in stating so.
That said, by just evaluating your ACT score (33) and GPA (3.5 - 3.6) I would say your chances are very very small. That you have 2 Cs on your transcript is especially troubling because schools such as Stanford do not even like to see that you have more than 4 or 5 Bs in schools. Being a URM is a hook, but being an AP scholar and living in California are not. Yes, Stanford does seem to have some major feeder schools (such as Gunn, Mission SJ, Monta Vista, etc) but even attending these schools is not a hook, and virtually every Stanford applicant is an AP scholar. ALSO, you have not mentioned that you have taken any SAT 2 subject tests, which are what really shows colleges what you are interested in and have the skills for. Stanford will want to see that.
People I have talked to have told me applying to Stanford REA may not be the best option because apparently the EA applicant pool is heavily concentrated in legacy applicants, athletes, and outstanding/exceptional students who have done crazy things (published books, started successful companies, etc.), so I myself was recommended to not apply to Stanford EA. I am not sure how much of this is true, but I do encourage you to apply to Stanford EA if that is what you want. Ultimately like I said, it is very hard to tell you your chances since ECs are such an important part of the application. If you are willing to list them below for us to see and evaluate, I can give you a more accurate analysis. But as of now, your chances don’t look too great…
Please chance me back 
: http://talk.collegeconfidential.com/what-my-chances/1995754-chance-me-low-gpa-rank-cornell-rice-wash-u-ucla-etc.html#latest