I think I posted the poll in a confusing way. I wanted people to click on which fish to get rid of. Not which fish to keep.. . Anyone have a different answer now?
I would have to get rid of the GT. I have 2 of them and they have always been on of my favorite fish, but as you said, Dats are more rare and slower growing. I think you could enjoy the Dat for a nice long time, then sell it, buy a GT, and have the same size GT in a 1/4 of the time it took to get the Dat to the selling size. You could probably make enough money to get a tank for each and get juvies of each.