<p>I used to be a proponent of the ACT, but really, I wasn't sure at all about it when I walked out of there. It's just too nerve-racking of a test.</p>
<p>if you're good with time constraints definitely take the ACT. there's no reason not to, and if you do better on your ACTs than SATs, you don't even have to send your SAT scores.</p>
<p>i say go for the ACT since you don't have to send your scores if you aren't happy. you also get a chance to demonstrate your abilities in science (not really, just reading graphs), but still, a high science score could be a plus if you want to be a science major</p>