I am the one person on the Tropic Dancer, however, I was told no one was booked on the Palau Aggressor II - of course - that was a few weeks ago when I talked with the main office - maybe some progress has been made, I'll have to double check. There was a point of confusion I brought up with them because the Aggressor was marking Oct 16-23 as 25% off and the Dancer Fleet marked it for 20.11% off. I brought this up to them and they made both weeks 25% off. I know the Aggressor has been there longer and so some people might think that boat is more experienced with the local diving - perhaps that might be true but I heard that the crews for both boats kind of flip flop as needed so to me either one would be good.
But again, to answer your question I am booked on the Tropic Dancer.
Take care hope to see ya there!