I ordered another Delta Dawn, Solar Eclipse, Forever Purple, and Gunsmoke. Forever Purple is probably the prettiest color. It likes less sun than the others though. I killed one last year with too much sun. I have one in mostly shade now, and it's happy.
Delta Dawn is just a complete winner here. It's in its 3rd year. It's the best one I've ever grown with the vein coloration. The others always lost the veins in the summer.