Presidential voting is only a waste of time if you feel that way about it. For me it is a once-in-a-while ritual that is performed, more about mass intention setting. Viewed this way, voting for the best candidate is what is important.
It is surprising that Cynthia McKinney, presidential candidate for the Green Party, has not been mentioned. My long time BS litmus test is whether or not September 11th can be discussed honestly by an individual or organization. That means most all politicians fail. However the Green Party has been cool enough to have a new investigation as part of the party platform for some time.
And Cynthia McKinney has a proven track record not just on 9/11 truth but on other important topics too.
American Blackout the movie
http://www.americanblackout.com/
McKinney addresses the 9/11 Truth audience in nyc Sept 2008
http://www.youtube.com/watch?v=ZbgThshtcyk
"McKinney Grills Rumsfeld"
http://www.youtube.com/watch?v=eootfzAhAoU
Last election my presidential vote went to Leonard Peltier of the Peace & Freedom Party. Seemed like there was some beauty to voting for a person still wrongly in federal prison. Anyway, have fun voting!