An education is what you make of it. I think you could do well at either. Congratulations for getting into such highly ranked schools! That said, in terms of C

An education is what you make of it. I think you could do well at either. Congratulations for getting into such highly ranked schools! That said, in terms of CS, I think Stanford is the clear winner in terms of name brand. Harvard is a big name in a lot of areas; I've never heard CS being one of them (I'm sure it's still a great school though). Also, as you mention, Stanford is in Silicon Valley, so for entrepreneurship/tech business Stanford is also probably a better pick, in my opinion. Unless you want to branch out into a field that Harvard is more well-known for than Stanford, I would pick Stanford. I don't think Harvard's a much better school in non-CS areas than Stanford, and Stanford is generally regarded as a better school than Harvard in CS. If you decide that you really want to learn about field X, and Harvard is much better in X than Stanford, then that might be a compelling argument the other way. But if your criteria is "CS + ?", then I'd pick Stanford. My 2 cents. Both are great schools to go to - there is no wrong decision here.