I have a new pitbull, Hes an American pi bull, Do you want to know anything about pit bulls? 
Yes! tell me all about them! Ive always stayed away because of all the horror stories
Well Pit bull is such a common name for a type of dog but some people call them "killer" or other bad stuff, but really they are very docile animals. 
whats the most popular type?
The most formal and popular breeds are the the American Pit Bull Terrier, American Staffordshire Terrier, American Bully, and Staffordshire Bull Terrier.
how big do they get
. Males normally are about 18-21 inches (45–53 cm) in height and around 35-60 pounds (15–27 kg) in weight. Females are normally around 17-20 inches (43–50 cm) in height and 30-50 pounds (13–22 kg) in weight.
The American Pit Bull is medium-sized and has a short coat and smooth well-defined muscle structure. Its eyes are round to almond-shaped, and its ears are small to medium in length, typically
The pit bull has a long history in America. In the early 1900s the U.S. proudly used pit bulls on WWI posters to symbolize qualities that make up America - friendly, courageous, hard working and worthy of respect. I chose my name because I admire the breed for the same reasons. When I hear about pit bulls being used in dog fighting, it makes me angry. I have a choice to step into the cage to fight, but these dogs have no choice. Dog fighting is morally wrong and inhumane.