Competitions or EC?

<p>[thread=882561]A brief profile[/thread]
It seems I posted my last thread on a wrong place.</p>

<p>I wanna get into top engineering schools, so i'm now wondering whether I should put my full energy on books to get a few national awards or work on better ECs in the next 2 yrs to impress the colleges. (I'm a sophomore.) What should I do? Thanks!</p>