I for one chose to save Doug and I shot Jolene first chance I got!
It's not based on the sex of the characters, (for me) it's who do I think will be the most beneficial (to me) or if they are a threat, regardless of gender.
I too have watched quite alot of the youtube playthroughs mostly because I enjoy the commentary from those playing it the first time.. I like to hear them react to a scarey moment or tough decision.
But also realize it's a vast majority of males who play this game and make those video's, knowing they have an audience and cant help but say things like "oh hell yea i'm saving the girl, I can use her later! LOL"
Typical guy when he knows there's people watching.
One could also argue that a female playing this would choose to save Carley and not shoot Jolene as wanting to stick together. Girl Power so to speak!
But as I've said before, when I play this, I really try to imagine myself in the world of a ZA and focus on what I would do in that situation, not what I think would be the popular decision or make the viewers laugh!
Zombies dont care if your a pretty girl or nerdy guy. Equal opportunity for all.
hmmm maybe we could all learn something from zombies about equality!