Democracy, sure its flawed, and sure most people are stupid (We voted the god damn tories into power. I mean David Cameron? Come on!!!) But even stupid people have the right to their opinions, we all do. Democracy isn't the most efficient of governments for ruling a country no, but it is still the best.
Look at it this way, if you follow the philosophy I do "A government should always fear its people more than the people their government" if your in say, I don't know, a dictatorship, the only way for the government to fear its people is violent revolution, which tends to result in alot of people getting hurt on all sides. A democracy, allows for a way to remove poor or bad leaders without the need for bloodshed, which is the beauty of it.
That and I'm a rather big proponent of equal rights, free speech, all the other wonderful things that are supposed to come hand in hand with democracy. Though I do say I quite like the constitutional monarchy we have hear in Britain, the racist remarks the royal family is in the habit of making always cause amusing media storms.