For a variety of reasons including that I grew up in New Mexico and thus have a long history of hearing the good and decent things that Bill Richardson has done, he's currently my favorite* of the 2008 Democratic hopefuls for president. He also just came out with some ads that enumerate lots of the good things about him, and made me laugh:

http://www.youtube.com/watch?v=tjOuL5qwNIc

* Dennis Kucinich still has the best policies, but the weakest campaign aside from maybe Gravel