Seems to me that the actress playing Cersei would make a great Dany. But then, we wouldn't have a great Cersei. And Cersei's a much more interesting character, anyway. Hell, I would take the one who plays Margaery over Clarke.
Other things float.
Why did Theon 2.0 (the new leader of the water folk) tell everyone to build him new ships when there's no visible trees on those islands!?
Other things float.