What's a tougher school to get into: Northwestern or USC?

<p>From collegeboard.com (2011 stats)
USC
Admit rate: 25%
SAT Critical Reading: 620 - 720<br>
SAT Math: 650 - 740
SAT Writing: 640 - 720<br>
ACT Composite: 28 - 32 </p>

<p>Northwestern
Admit rate: 27%
SAT Critical Reading: 670 - 750<br>
SAT Math: 680 - 770<br>
SAT Writing: 660 - 750<br>
ACT Composite: 30 - 34</p>