<p>Choose the one you like better. Who cares whether it is 1, 4, or 10 for undergrad? Where will you feel the most comfortable adnd inspired to work? Small or mid size? If you can't separate them then flip a coin</p>
<p>My kid turned down both plus MIT because he liked U Michigan better for a place to live the next four yearsand becuase profs and professionals he trusted gave it high marks. The opportunities to learn for any person who is smart enough to get into both Caltech and Stanford are great. It is up to you and your attitude, how you feel about the social life , the culture, etc. If all those are equal and you cannot find any other way to choose then go with some rank. However ,if you are smart enough to get in you also are smart enough to know that the differences regarding what it means to you personally are meaningless. People who buy into thinking that 1 versus 10 means any thing for a particular person are both naive and have much to learn about the world--let alone statistics. Good luck, you if you really cannot find anything to make you unhappy about either then you will have a great undergrad experience, no matter what. It really is about you anyway more than the school. Oh, and whatever you do , don't second guess or look back. Look forward and get ready for college.</p>