First, sorry that I didn't read the whole thread (not time for that atm), so I might be saying something someone has already stated. But as a female myself, I think you do seem to have very strong opinions about my gender, how we are and how we should be. Haven't you ever heard of the power of a strong mind over the body? When you get influential enough, the gender does not matter. That is why I always have my persuade in DA full, and that is how I play my female characters. They are strong willed, strong persons, who would very much dislike if someone would start to tell them what to do (as I am in real life, come to think of it, I dislike men who think they can bully me around hehe). I think my characters would ditch Alistair if he'd start to be too commanding.
It is also a question about trust and confidence. Of course it also depends on how you roleplay your female characters. I roleplay mine as confident women, who are not afraid of the darkspawn, nor are they afraid of Sten. I mean, HNF almost single handedly killed dozens of soldiers in her origins, CEF did the same, and also was bold enough to stood up against a human noble. Why would they be afraid of Sten, or anything else for that matter? Or why couldn't they overcome that fear, since it is obvious they are meant to be strong willed?
I admit, there is no such strong man as a love interest as some might prefer. In a way I'd have liked to see someone who would've given some kind of challenge for the female PC, like arguments and such (without the approval dropping too much). Alistair is funny, innocent, cute and awkward (a lot like my real life husband actually), and my HNF fell for him just for that, but she does know she is the stronger of them two, that she has to make the decisions. She was raised as a noble, and I roleplay her as being a slightly older than Alistair is, so it comes naturally from her to give the orders. Besides I always think she trained on her own, and with Fergus, depending on if I play a warrior or a rogue. It is obvious that Fergus values his little sister a lot, even in ways that other family members don't find that suitable.
With a CEF it should be even more obvious, her life has been struggle all her life. If you want to play her for example that she'd leave Sten in his cage, why don't you? You don't need Sten to finish the game. And for me Zev would suit well with a CEF, of course depending on how she is roleplayed again. Even Alistair, because the conflict would be delicious to roleplay, I mean, CEF falling for a human, that's really interesting in my opinion.
One romance option is of course also Leliana, which I prefered with my elf mage female and with my CEF as well.
And yes, female PC can become best friends with Morrigan, I really liked the way she changed when that happens.
I actually haven't finished the game once with my male characters. Well, I've only finished it once till now anyway, with my HNF warrior. I don't know why I seem to have difficulties playing DA with a male character, because I haven't had that in other games (BG2 I only finished with a male character for example). I think I find the game the opposite, I like it more with a female character, maybe because I feel it a bit more challenging, like in real life, a woman must fight more to get approval from people (like from Sten for example, who thinks women should not be warriors). Maybe playing a male in DA feels too stereotypical for me? I don't know, maybe I really should try it some of these days.