spread out or consolidated?

<p>So I’m a sophomore currently in school and will be a junior fall 2011. In my time other than school, I participate in Tennis and Interact. Tennis I’m varsity and I think have a good chance of being captain and Interact (our volunteering club) I’m hoping and think i can become President. I also “semi join” our business club in my school. I was wondering whether or not those E.C.s were too less. My top choices for colleges are
1.Harvard
2.Columbia
3.Yale
4.Princeton
I also wanted to start my own publishing company and so I was wondering whether or not I should start my own business or do more E.Cs in school. Can anyone help please? :D</p>