Well dude,
Things do look good for you - Best GMAT, Best GPA, Best School, Best FMCG. Definitely on the track to goodness. I'd hold off on figuring out exactly what you might get from where without first hearing more about your work experience and your extra stuff (like volunteer work and your ECs), but things do look very nice, and with an awesome application you should have a shot at top schools, even H/S/W. But I would like to point out that a 770 is not necessarily the thing that will get you in (Although it impresses the heck out of me!
) Really for H/S/W once you cross 720, the score doesn't matter as much as the rest of your profile (And of course your application). And if you are in line for those schools you are definitely in line for a scholarship in Top 20.
And I'll tell you a little secret (well, not THAT secret) you want a scholarship? 1. Show need 2. Apply to LOTS of schools - there's something a bit unpredictable about who will get scholarships, but if you apply to 12 out of the Top 20, your chances of having money offers will be far far far greater.
Hope this helps!