What is good advice to give to my college bound sister?

My sister is a highschool senior, and being fall it’s college application time. I’m a junior in college so I’m trying to help her out the best I can but it seems like so long ago. I told her to pay attention to the housing situation, the accreditation of the school and the major she’s applying for, and to be aware of how far away from home it is.

I am a health science major but she’s thinking about business. I know nothing about business (or anything but health science really) so I’m not sure how to steer her in the right direction. I know she’s taken those “what major is right for you” quizes but how do you REALLY know where you belong?

So I’m hoping the collective can come up with some good deciding factors on what makes or breaks your college decision, and what questions to ask recruiters. (She has told me that she would love to go to Emerson College in Boston MA and might like to go where I am which is Quinnipiac University in CT so if any schools are similar that you know)

Also she’s asking me about the essay. I told her that they want to see something short with a topic of your choice that means something to you with varied types of sentences to show that you have strong writing abilities. Is there any other advice I could tell her?