You present a deeply impressive résumé; I would say that maintaining your sterling grades and score records and writing strong essays should prepare you for admission at least to any UC, three of the six top universities you mentioned (Stanford, Harvard, Dartmouth, Princeton, Columbia, and Brown) and one of the two liberal arts colleges (Pomona and Harvey Mudd). While I cannot guarantee this at all (I am far from any “insider”), I think that your consistent and successful devotion to academics and your extracurricular activities cast you in an attractive light, and that although I have seen similarly qualified candidates rejected from these top institutions (shockingly, in many cases), you will be accepted to at least a few.
Best of luck!