0 positive I actually just asked for the blood work to be done cause i wasn't sure if it was 0 pos or 0 neg.
1 in 3 people of my blood type it's very common. because of that o pos people are most needed than any other.(no necessarily the best to have though)
only sucky thing is if your a neg 0 blood type you can only recieve 0 neg

every blood types has good and bad advantages to it. i did in depth study about it just own curiosity.and my mom had to gets transfusions every 2 weeks for a very long time so it sparked my curiosity
it's actually pretty cool to because certain regions also have more prevelant blood types than others.

although ab+ IS prob the best because they can be transfused with any blood type inemergencys

if i'm ever in dire need of blood i just want to be the type they have a lot on hand at the hospital at the time.
One important note: in the past, type O Blood was given to virtually anyone except those with what was termed 'rare' Blood. Donors of Blood group O were always referred to as 'universal donors.' Today, because of new research and a better understanding of the complex issues regarding immune reaction related to incompatible donor Blood cells, type O Blood is no longer automatically seen as being suitable in most every case.
-Mayo Clinic HealthOasis