http://glassbooth.org

According to this website, which does a quiz of your important issues and politicians’ views on those issues, apparently:

1. Mike Gravel shares a 89% similarity with my beliefs.

2. Dennis Kucinich shares an 87% similarity with my beliefs. 

3. Hillary Clinton shares a 79% similarity with my beliefs.

(And then John Edwards and Barack Obama were after that) 

Pretty cool! It also uses quotes in the media to try and gauge how alike you are in terms of viewpoints on specific issues.