With Ralph Nader on the left and Allan Keyes on the right, and the Libertarian Party wherever they may be found, we certainly have options for voting third party this year.
I have voted for third parties in the past, specifically for the Libertarian Party, though I once offended a roomful of Libertarians who were trying to persuade me to join the party by telling them that the best characteristic of the Libertarian candidate in my view was that he had no chance of winning. For me, voting for a third party is a protest vote, designed to point in the direction in which we need to move, and not to indicate full support for the person I vote for.
There is a critical difference between all of our current minor party movements and the major parties. The major parties seek some kind of compromise and consensus. As an independent, I often think they do a very poor job of this, but at least coalition building is a goal. The minor parties tend to seek political purity, and to provide a “correct” option for which their supporters can vote.
A party that remains in that minor party mode will never become a major party. They will remain minor. Political purity is not going to win elections. Compromise is a requirement of political life, and a requirement of governing. Compromise laws and policies will always find plenty of critics. It’s easy to criticize when you don’t have to provide a positive alternative that not only would work, but that could be passed.