Your ecs look very interesting, but it might be beneficial if you had more leadership positions. Your couresload looks very challenging which is a definite plus. Also, although your GPA and SAT scores are good for many of your schools, I think that they are on the low of some of your top tier schools. BEST OF LUCK!!! 
Carleton: IDK
Cornell: low reach/ mid reach (I get the impression essays are especially important here)
Davidson: IDK
Duke: reach
UMich: high match
UNC: high match
Vanderbilt: low reach
Wash U: reach