This is a controversial issue, I know, but here goes.
First of  all, I was vaccinated, so was my sister.  Do I think parents who  vaccinate their kids are horrible?  ABSOLUTELY NOT!  Do I think we  should inform ourselves about vaccinations instead of just doing what we  are told, what "everyone does" what the government "requires?" Yes.
Here are some reasons I am leaning towards not vaccinating.
*Many  of the diseases we vaccinate for are not life threatening, the ones  that are are incredibly rare.  For instance, Chicken Pox, didn't we all  have this as kids? didn't we all just put some lotion on, take oatmeal  baths for a week and then everything was fine and we never got it again?   What's the point of putting harmful chemicals in our body?  Another  example, Polio, while polio is life threatening there was an outbreak,  they created a vaccine after it was steadily declining in cases in the  US. And since then majority of people who got were people who had  received the vaccine.  All this brings me to my next few points.
*Getting  vaccinated is not a guarantee you won't contract these illnesses.   Recently there was an outbreak of pertussis (whooping cough) part of the  the DTaP vaccine in Oakwood, Ohio, close to where I live.  Guess who  was getting it? You got it, it started with and everyone infected with  it had been VACCINATED.   Interesting, but parents who don't vaccinate  are putting everyone's kids at risk and irresponsible.  Riiiiiiight
*Vaccines  contain harmful chemicals like Formaldehyde and mercury, wait what?   Yep make sure while your pregnant you eat fresh fruits and veggies but  when your baby is born we are going to make you shoot him with untested  antibiotics.  Formaldehyde MSG, Mercury, egg protein and aluminum (yeah  this causes alzheimers). The 
CDC  even admits this but no parent is ever informed of this.  IF that isn't  enough vaccines contain serum from not only chimpanzees, monkey, cows,  pigs, chickens horses and even human serum and tissues from ABORTED  FETUSES.  I think I just lost my breakfast.
*The kids and people  my age (their mothers were brave and ahead of their time) that were not  vaccinated were sick less, bounced back from colds quicker and had less  ear infections, sinus infections etc.  (I realize this is just  observation and there is no proof of this but as often as I was sick and  with as much respiratory trouble Trevor had I consider this valid.)
*preventing disease and infection is all about just that, prevention!
Here is a interesting quote from a MEDICAL DOCTOR "There has never been a single vaccine in this country that has ever been submitted to a controlled scientific study. They never took a group of 100 people who were candidates for a vaccine, gave 50 of them a vaccine and left the other 50 alone, and measured the outcome. And since that has never been done, that means that if you want to be kind, you will call vaccines an unproven remedy. If you want to be accurate, you'll call the people who give vaccines quacks."
I  am still researching because I want to make an informed decision, I am  looking at what population gets these diseases we vaccinate for, how  many reported cases there are etc.  I am also informing myself on the  current laws requiring these vaccines and my right to exemption.  Which I  have!  I have to put on my game face when I deliver so I can "just say  no" to vaccines.