Questions about college admission and subject test

So I’ve been snooping around CollegeConfidential + other outside resources and found that the admission people or whatever will look at the top two subject test scores. Now I have also read somewhere that they will ONLY look at the top two scores out of all subject tests that you’ve taken. Now here is my question: What happens if you have 3+ test scores that are the same? Do they look at all three? Is there a ranking at which subject test is better than another?

It’s just something that has been floating in my mind for a while.

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