Parenting styles seems to be a controversial, yet important topic. With different situations, cultures, and metanarratives people seem to have very different styles on how to approach raising their children. Some have similar positive outcomes, and others may physcologically scar their child for the remainder of their lives.
The three main styles are categorized by Diana Baumrind as permissive - parents with little discipline and an overdose of freedom, authoritarian - extrememly strict parents, authoritative - a mixture of both, and uninvolved - parents who neglect their children. Personally, I was raised in a home that held more than the basic amount of affection, support, and safety which I would consider authoritative. However, I think we've all seen the different types of parenting styles at some point in our lives. If not to an extreme, I've seen parents who are sticter than mine or more permissive - sometimes there is not clear lines to what the style may be and it can lean more towards one or the other without being completely categorized. This almost makes the issue more controversial because two parents could have the same style, but on a certain issue disagree.
The situation the family is in is also a huge variable on how the parents choose to handle their kids - this could depend on the parent's personality, culture, martial status, and even how they themselves were raised. However, basic affection and an expectable environment is most likely to have a good outcome on the child.