It would be one thing if this thread had any shred of validity... But why would BioWare ever set up a scenario where the Inquisitor kills Hawke? This is probably one of the most ridiculous things I have heard suggested on these forums yet.
Hawke is a hero. He is the Champion of Kirkwall. Unless Hawke was behind the breach in the sky and is responsible for the Elder One, this is an absolutely terrible suggestion. DA2 may have been a disappointment, but it wasn't because of the characters or the story. The disappointment was the absolute underwhelming gameplay experience and the faulty philosophy BioWare had when developing the game. Had DA2 had the solid foundation DAO had, I believe many would view DA2, and Hawke, in a very different light today.