If we look at the history some countries got maximum development in Dictator ship while some got maximum development in democratic government. Every system has it's own flaws and benefits. What do you like ? if we talk about the welfare of general people.
I think democracy is much better than dictatorship. With democracy, people can choose their political leaders through voting. The people can also oust abusive ones by uniting for the said goal. Dictatorship can also be great but only with a good leader who puts the people before himself. The amount of power given to one individual is way too risky though. The probability of a dictator turning into an abusive leader or a tyrant is always high.
If you check the relevant data, you will quickly find that people do not choose their leaders through voting.
They are voting on the surface, but ultimately they are influenced by media and electional ad campaigns.
You can verify this by checking the amounts of money that different candidates or parties spent for their election campaign and comparing it against the amount of votes they got.
This has only started to change very recently - due to social media. But even with social media this premise still holds, it's just less obvious and very difficult to check.