@CPTart
pet I get where you're coming from with the "protest too much" argument, but bear in mind as thrilled you are with your girls, statistics say your DH would have secretly preferred a son. However much he loves his girls, he's disappointed he never got that sonbut would unlikely admit it
Load of shit. Nice try though hun. 
You can spout made-up 'statistics' as much as you like, my husband wanted girls as badly as I did, and never had any interest in little boys. Unlike certain cultures across the world, many men in the UK long for a daughter, more than a son. Sure, they will love their sons, but there will always be that secret longing for a daughter.......
And to put it bluntly, many boys he has encountered have been hard work. They have had behavioural problems, or issues at school with their learning as they are often way behind academically than girls, or they don't get on with their siblings, or they are just not particularly endearing children... My husband just plain and simple is not keen on boys.......... sorry to blow your made up theory out of the water.
In addition, brothers are way less likely to get on than sisters. I can count on the fingers of one hand, the amount of brothers I know who get on, and many are estranged from each other. Usually coz they are very competitive, and get jealous of each other, and their parents usually have a favourite when it comes to boys...... You don't get that happening with girls.
Also, the parents I know (who have boys only,) have actually had much worse problems in their marriage than those with girls. Couples with girls - at least one anyway - seem much more content than those with boys.
I reckon that the couples with boys are unhappy because the woman is upset and angry that her husband could not give her the daughter she so desperately wanted, After all, the gender of the child IS down the the man. 
I have seen and heard stories in the past (on tv and in magazines,) where women are very angry and bitter that their man could not give them a daughter. Oh yeah, and he wanted one too by the way, and felt as upset as she did, that his sperm wasn't producing a daughter...
Keep trying to convince yourself that boys are better though, and keep spouting this'families are more likely to fail' bollocks. Doesn't make it true. Everyone knows that most people (women and men) desire a daughter, especially those (LIKE YOU) who are denying it. 
I am off to meet my 2 daughters for coffee at lunchtime.. As I do every week.
Again, another thing you don't get with boys. Bet people with boys can count on the fingers of one hand the amount of times they have been for a coffee with their adults sons.....
YEP, you can keep your boys, AND your made up theories that men secretly want a boy. Maybe in certain cultures, but not ours.