Guardians are generally broken into two groups, patrollers & watchers.
Patrollers and watchers are not gender specific.
Generally females are the first to the fight, males coming in behind to finish the job. I see far more males that will stay with young kids and are better nurturers than females. Regardless of watcher or patroller.
I never look at gender when evaluating a dog.
I look at the individual pup and determine temperament, strengths, weaknesses. Of course I also do not let anyone "pick" a dog either. If I have 2 that are comparable then the person is given a choice.
Females are more likely to roam than males, contrary to popular belief. Board dogs will roam regardless.
Females are much harder to have with other female dogs.
It is a lot like the "2 women in the kitchen" syndrome.
I do advise 2 dogs well paired - watcher /patroller teams are ideal.
Dogs are pack animals and do best with another dog. Very much like goats - goats are herd animals and really need a buddy. I stress this with LGD's because they are not house pets that can be single because their humans are their pack. LGD's are pack dogs and far too many underdog their farms which taxes the dogs.
BTW- dogs should be noise tested
