Does EA/ED actually help?

<p>As far as I know, I will be applying to Rice, UCLA, Berkeley, Stanford, Caltech, MIT, and Duke. I’m tempted to apply ED/EA to one/some, but I don’t know if it will be a good thing. I’m sure the applicant pool will be much tougher, right? Besides, schools like MIT and Caltech must have tons of people who would love to go there as their only choice. So how can it help? Advice please. Thanks.
If it depends on my stats, here’s a thread with them:
<a href=“http://talk.collegeconfidential.com/what-my-chances/716436-chance-spanish-speaking-white-boy-cali-schools-mit-will-chance-back.html?highlight=mit[/url]”>http://talk.collegeconfidential.com/what-my-chances/716436-chance-spanish-speaking-white-boy-cali-schools-mit-will-chance-back.html?highlight=mit&lt;/a&gt;
(note the changed SAT scores (2270))</p>

<p>It helps because it tells a college that you truly want to go to that particular college more than the other colleges, and they won’t have to worry about yield because if you’re accepted, you’ve agreed to attend.</p>