NU/uPenn/CMU for materials

<p>hey everybody..iv got accepted for an MS program in material science in NU, uPenn and CMU..and am throughly confused as to which one to accept!!
NU seems to be ranked pretty high for materials
uPenn is close to NYC where i have family..plus the overall ranking for uPenn is really high!
CMU im lil less convinced about..
wud be grateful for any ANY advice..tanks a ton :)</p>