First of all, congratulations on the Tuck and Darden admissions - both are excellent schools!
I am inclined to say if you want the best ROI, as defined by the highest odds for your efforts, Booth and Wharton are probably better options.
HBS and Stanford will require a powerful story of leadership and impact. If you think you have an outstanding one, it may be worth considering. You have some serious MBA application experience under your belt already so you are probably already primed to write strong application content but you need to make sure the stories are there.
Another important question is to what extent have you engaged with any of these potential R2 schools. You will need some deep research to draw on that only comes from actual interactions - with the admissions office, current students, or alumni.
FWIW, I am running a new type of MBA admissions consulting this fall - it's a closed-group membership where I work with a group of students, instead of 1:1. If you are curious, here is what it is:
https://www.mymbapath.com/sprints