I assume I am going to get blasted here for saying this, but oh well... I think the better protest vote (by far) is for Gov Gary Johnson. I would do anything for Dr Paul, and have. I campaigned for him/with him in Nevada, Iowa, Virginia, and NH, and would be campaigning for him now if he were running for President. However, I feel at times like this when he's not running for President, a write in vote only shows close mindedness.
I'm voting for Gov Johnson because I WANT him to be the spoiler for Romney. Granted the money will never support a liberty candidate anytime soon, but the establishment controls the money and the media, but the voters they simply influence (not control).
I feel the best chance for other liberty minded presidential candidates to EVER get a chance to win is by proving to Republican voters that they will never again have a Republican in the White House unless it is one of our guys.
Paul(s) go the GOP route and Johnson keeps the Republican establishment losing. Eventually we win. But please, vote for the best candidate running for President - vote for Gary Johnson and do not dilute the vote count of this good honest man.