Pure Democracy is defined as Majority Rules -- the masses vote directly on issues. The United States is not a Democracy, it's a Republic -- to get very detailed, it's a Constitutionally-limited, Representative Republic that has a democratic process. The founders of the US recognized this and many of their writing speak about the dangers of pure Democracy.
Pure Democracy is bad because the majority decide things without the rule of law over their decisions -- in other words, it's the tyranny of the majority. It's great ... as long as you're in the majority, of course. For those with minority views there are no protections.
So, yes, I know of a better form of government -- pretty much any. As I stated, in a dictatorship the people can overthrow the one in power -- but it's tough to overthrow the majority.
Pure Democracy is when seven wolves and sheep decide what's for lunch ... everyone gets a vote ... even the lunch.