For the Democrats, Hilary is looking like she might do alright but Al Gore could pose a big problem because of all the money he has. When Kerry committed political suicide on his comments, Hillary stepped on his neck when he was down. Obama doesn't have much of a chance because of inexperience. I don't like Hillary at all though. She is polarizing and I don't agree with her on much at all.
For the Republicans, (which I am) I would like to see Newt Gingrich throw his hat in the ring. He would be my first choice and he could win debates with other candidates. Not only is he a wealth of knowledge (PhD in History) but he is well spoken too. Rudy would be next because of the job he did in NYC was good and I think he can help the US. For social reforms though, I do not tend toward him much. But for me, economics outweighs social reforms by a lot.