All are outstanding choices, but Duke is the weakest for engineering. Of the others Stanford>Rice>Northwestern but Northwestern is excellent for Material sciences and Rice is in the middle of the largest concentration of petrochemical companies in the country. No bad choice, I would revisit this if you are admitted to any of them.
- Which will you get a football scholarship too? Are you being actively recruited to any of these or are you a planning to walk on? What position do you play are what are your skills vs the current teams?
Do you realistically think that a) you have a chance as a walk on at any of those programs and b) will have time? ChemE is considered the most demanding program in engineering.