What is the best Ivy League school for a biology/science major?

I think that Ivy league schools that are best for the biological sciences would be Yale, Harvard, and Penn. The other universities are great as well, but they have more emphasis on the liberal arts. But, since these are Ivy League schools, they are all at the top of their game. Stanford is also a good alternative. I'm a freshman in high school as well, and I am also interested in the biological sciences.