What would you do in my scenario?

What if I had 1600 on first SAT, 1900 on 2nd, and a 1800 (lower for all sections) on my 3rd SAT? Should I send all 3 scores in? Would it look dishonest if I only send in the first 2? Help please!

It likely doesn’t matter. Most schools, especially those that would accept someone from your score range, practice score choice, where they only want to see your best scores in the first place. Check the website of each college that you’re sending scores to and they’ll have some policy spelled out. If they say that they allow from score choice, just send in the first two (not that they’d be aware of the third necessarily anyhow),