Many people believe that female dogs make better pets...female preferences
seem to be ingrained in these people.  Most calls for pet dogs have people
wanting a "sweet girl".  They don't think females display alpha behaviors like
"marking" and/or "humping".  They believe they are more docile and attentive
and do not participate in fighting over male dominance.  Well folks, this is not
true and they do not call them a "bitch" for nothing!  In the dog pack makeup,
females usually rule the roost, determine pecking order, and compete to
maintain and/or alter that order.  The females are, as a result, more independent,
stubborn, and territorial than their male counterparts.  The females are much
more intent upon exercising their dominance by participating in alpha
behaviors such as "humping". There IS a reason people utilize the technical dog
term of "bitch" in a negative way, and it refers directly to the behaviors
exhibited by the females of the dog world.  Most fights will usually break out
between two females.  Males, on the other hand, are usually more affectionate,
exuberant, attentive, and more demanding of attention.  They are very attached
to their people.  They also tend to be more steadfast, reliable, and less moody.  
They are very outgoing, more accepting of other pets, and take quicker to
children.  Most boys are easily motivated by food and praise, and so eager to
please that training is easy.  However, males can be more easily distracted
during training, as males like to play so often.  And no matter what age, he is
more likely to act silly and more puppy-like, always wanting to play games.  
Boys are fun loving until the day they die.  Females tend to be more reserved or
dignified as they age.  Boys do get bigger than girls, but only by an average of
1-2 inches and 3-5 pounds.  Neutered males RARELY exhibit secondary sexual
behavior such as "humping" or "marking" and lifting of the legs.  Once the
testosterone levels recede after neutering, most of these behaviors (if they ever
existed) will disappear.  Boys who are neutered early, by the age of 5 months,
usually don't ever raise their leg to urinate.  And while the female will usually
come to you for attention, when she's had enough, she will move away.  While
the boys are always waiting for your attention and near hand.  Females are
usually less distracted during training, as she is more eager to get it over with,
and get back to her comfy spot on the sofa.  The female is less likely to wage a
dominance battle with YOU, but she can be  cunning and resourceful in getting
her own way.  She is much more prone to mood swings.  One day she may be
sweet and affectionate. The next day reserved and withdrawn or even grumpy.  
The female also has periods of being "in heat" unless she is spayed.  Seasonal
heats can be a month long nightmare-not just for the female, but for you and
every male dog in the neighborhood.  If you are not breeding, you would be best
off to have her spayed,  since during this time she can leave a bloody discharge
on carpets, couches, or anywhere she goes.  She will be particularly moody and
emotional during this time.  A walk outside during this period can become
hazardous if male dogs are in the vicinity, and she will leave a "scent" for
wandering intact males to follow her right to your yard, where they will hang
out, and "wait" for days.  Before deciding on male or female, give consideration
to any other dogs that may be in or around you home!
With all this said, you decide!

BOYS vs GIRLS