2 or 3 subject tests

<p>yeah i know people asked below but just to get a clear answer...</p>

<p>do most applicants to top schools take 3 subject tests even though only 2 are required?</p>

<p>also, does taking 3 give someone a huge advantage or does it not matter at all (considering that all 3 or all 2 are above 700)</p>