The scewed US presidential election system is controlled by, and biased towards two main parties, which eliminate good candidates within a party, and ignore good candidates from other parties.
The two main parties are continuously in deadlock, while smaller parties who could break it up don't get a chance to be represented.
A Preferential Voting System is Better
In a preferential voting system, aka "ranked choice voting system", as practiced in many countries and a number of US municipalities, voters actually get a choice to rank their candidates, leading to a much fairer, true, final result. Votes are counted simply by highest rank among all candidates. This is my US 2016 election recommendation if it were held with a ranked-choice voting system:
1. Democratic Socialist, 2. Green Socialist, 3. Corporate Plutarchist, 4. Libertarian Oligopolist, 5. National Vulgarist.
And voila, the lesser of evils problem is eliminated. Plus, the concern that my vote for an orange could get me a lemon, the spoiler dilemma, is equally eliminated. Its the old "eliminate two flies with one swat" trick (at 8 min 30 sec).
Edit 2019-09-07:
Maine allows for ranked-choice voting without governor's signature
https://www.msn.com/en-us/news/politics/maine-allows-for-ranked-choice-v...
A Parliamentary System Allows Diversity
We distinguish three types of democracies, with different types of election systems. The Presidential Democracy (ie. US, France), the Parliamentary Democracy, and the Direct Democracy (ie. Switzerland). The Parliamentary System is applied in many countries that used to be, or still are, constitutional monarchies.
In a parliamentary system there are no presidential elections. This is because historically a constitutional monarch is (or was) the head of state. The monarch functions more or less as the moral figurehead of the nation. That requires someone else to be the head of the government.
So, instead of voting for a president, people vote for members of parliament (congress). These have, as usual, party affiliations. The majority party forms the government, including ministers and prime minister. If an election results in no clear majority party, a number of parties must cooperate to 1) form a majority that is able to govern jointly, 2) set up a negotiated joint political platform, and 3) install ministers and appoint a prime minister (UK, Netherlands) or chancellor (Germany). Also not a bad way of arranging things.
Related: Voting Systems
Democracy Building: Elections - Voting Systems - Markus Jud
http://www.democracy-building.info/voting-systems.html
Types of Voting Systems - Mount Holyoke College
https://www.mtholyoke.edu/acad/polit/damy/BeginnningReading/types.htm
Voting Systems Made Simple - Electoral Reform Society UK
http://www.electoral-reform.org.uk/voting-systems/