Would you like an older form of democracy, or did you have something else in mind?
I have not made up my mind yet, but intuitively, a better system might be one that has the chief elements of Ancient Greek and/or Founding Fathers styles. Basically, small-gov limited democracy. There are still checks and balances, but estateless socialists cannot vote themselves benefits at the expense of the taxpayers. Allowing everybody to vote inherently opens the system to a vicious circle of politicians running budget deficits and taxing their enemies to give away to supporters, which in turn keep the former in office by the latter's votes. That is ultimately what has been destroying and will destroy this country.
But all of the above is theoretical pipe dreams. The reality is that we are way past the cultural point of no return. So, we are just sliding downhill faster and faster. The good news is that when the country finally is completely bankrupt and nobody in the right mind lends money to the US gov, the incentives of corruption will disappear as well, so that lawyers, bankers, demagogues, and dirty politicians can move on to the next economic powerhouse to leech on and destroy.