Which of the following clubs would be most beneficial when it comes to applying to a college like Stanford?

Find a club that would really enjoy and stick with it. It doesn't look good to colleges or employers if you have 3 months with Yearbook, 3 months with NHS, 3 months Debate. The thing is to make sure the club will not interfere with your school work. College want people who are well rounded. Talk to the teachers of some of the clubs you are most interested and explain to them you are not sure which club, will suit you the best. Most teachers will let you join for a couple of session and let you make your decision. The only time this is not possible is if there is going to be a waiting list. Yearbook for insist might have a waiting list. My high school did they had 30 kids that wanted to work on the yearbook and only 12 spots available. Good Luck