Let’s assume you get a great test score. Yes, you are a very competitive applicant, but no, I don’t think you stand out from the crowd in a significant way. You have a lot going for you, but you will be applying to top schools with a LOT of other equally qualified applicants. In your case, I suggest you cultivate good relationships with your teachers. Teacher recs hold a lot of weight at top schools. Write a killer essay too. Remember, top colleges want to admit people they like and who they think fit their ethos. You are an unhooked ORM. I think for you, teacher recs will be crucial.
@happy1 mentioned top students who end being shut out during admissions. I personally know a girl who was class Val and had a nearly perfect SAT score, who didn’t get into any of the tippy top unis she applied to. She was, however, accepted to three prestigious LACs and attends one of them.
Read this: http://talk.collegeconfidential.com/college-admissions/1876770-what-did-i-do-wrong-p1.html
There are several posts like this every year. And those are just the ones who actually come back to tell us what happened.