Help me decide which one I should study for.

<p>SAT or ACT?</p>

<p>SAT: (1st)500 CR
680 M
600 W
(2nd)
580 CR
690 M
680 W</p>

<p>ACT (only took once): (1st) C:28</p>

<pre><code> ENG:28
M: 32
R: 24
SCi :28
</code></pre>

<p>I'm a senior now...so I don't have much time left :/ which one do you think I can potentially do better on?</p>