Voting third party is exercising your right to vote for whichever candidate you like the best. No vote is a "throw away vote" if you are participating in the election and are trying to make the decision you feel is the best one to make.
Voting for either of them means you either like the lady who thinks wifi causes cancer or the guy who isn't 100% sold on the civil rights act. Let's be real: they're both nuts and somehow worse than Trump.