I can only speak to f!Hawke, since I have yet to play an m!Hawke game, although I gather the characters are basically the same. And it's fair to speculate that I might relate so strongly to a diplomatic Marian because she was the first Hawke I played, and most of us tend to have the PC make the decisions we ourselves would make the first time through. But picking the diplomatic options almost always came naturally. And unlike the Warden, Hawke is not a tabula rasa -- you can take her in different directions, nudge her along, but there is the basic core of a personality there. In contrast, when I played my aggressive!Hawke, she was so unlike me that sometimes I had a hard time relating to her -- although pulling on that persona was an awful lot of fun. So I do think it's a fair answer.
Many aspects of Hawke in her diplomatic persona resonate with me -- her desire to help friends and family and the downtrodden (refugees, slaves, mages), her commitment to compromise and working with others and looking for the solution that will make the most people happy. Trying to genuinely see the best in most people, even those with whom she disagrees. Seeing violence as a last resort rather than the obvious solution. And sometimes, or so it seemed to me, telling people what she thinks they want to hear rather than what she might actually believe. (Although that last one might be a little more projection than the rest...)
Complete list of questions
This entry is also posted at http://owlmoose.dreamwidth.org/574759.html. There are currently comments on DW.