Quoting Sandy, not a lot of non-URM Big 4 make it to Harvard, so just be aware of that. You're a strong profile at every other school you mentioned, and if you execute well, you should get multiple admits from your list. I've not done any research on HSM, but heard some conversation about it during my visit to Fuqua. I don't believe it's more rigorous to get into those programs beyond the difficulty of the school in general.
Reach out to alums, do your research, visit schools, etc. All the stock advice will help you craft phenomenal essays, and you'll be sitting pretty this time next year.
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