Dictators are usually military leaders, who focus mostly on themselves, and their clique. Dictatorship often does not include effective rules or laws.
No Pros, Only Cons
The civilians usually have little to no say in what happens to their country. There is a small chance that a Dictator will actually take in peoples opinion, and have open elections for some things. Unfortunately, most dictators just make desicions for his benefit only.
An example of a dictator would be Aldolf Hitler of Nazi Germany. He most of his rules off of his opinions alone
Democracy is a government that is mainly based on letting the people decide whats best. It consists of rules and laws that both citizens and people of government have to follow.
Pros and Cons
Pro: People can choose what they prefer, and what they trust more.
The presidential elections in America.
There are very minimal intelligence requirements for voting.