You have more control over your dreams than you have over any other part of your application.
For years, Collegekid1 dreamt of going to a specific program at a specific university, but a really exciting bird-in-the-hand came up for undergrad, so she decided to defer the dream until grad school. Finished college, worked a couple of years, applied to grad school and -hooray!- she got into the program that she had dreamed of for some many years! But then- wow- a long shot app to another program came through. And after a long hard think about the pros and cons of each school, she decided that although she would always have a little pang about letting go of that dream, the other school was the better one for the bigger picture of where her evolving dreams are taking her.
Because college isn’t an end itself: it’s part of moving you towards your larger goals. And dreams are not fixed. Pretty sure that you have already let go of some early dreams- because new, bigger dreams took their place. Re-examine what it is that you are dreaming about- just because it was what you told everybody you wanted when you were X age doesn’t mean you have to have the same dream at X.5 or X + 2.
@Eeyore123 is right: if you are torn you aren’t ready to commit to ED/REA. I understand wanting to hedge your bets- the collegekids in our house have done plenty of weighing odds! - but for college and for all of life the best bet is to follow your truest heart. If your dream of Stanford is not one you can let go of or re-shape, then don’t commit to ED someplace else - even if it’s the longest of long shots.
And, in the un-asked for advice category, I would put 10x the energy you are putting into this decision into picking matches and safeties that you can love.