I think this elections Democratic field is just phenomenally good. Obama, my favorite, he's just outstanding. I like his passion, his stances, and his openness. And I think he has a great chance to win. The other two front runners are strong as well. I really dig Edwards positions. He out lefts Obama, and left is always right! ;) I even like Hillary for the most part. She gets a lot of flack, but I think most people dislike like her for superficial reasons. Such as she's shrill. My main qualms with her is she's a bit hawkesh and and she thinks the government needs to protect the kids more than I think it needs to.
The second tier candidates aren't too shabby either. Biden puts his foot in his mouth too much, but he's got a lot of good answers. And a single father of two isn't too shabby of a role model these days. Richardson has a background in executive office, headed the department of energy, and was ambassador to the UN, all very relevant experience. And Gravel just entertains me to no end. :)
I think Obama has the best chance of winning the election. He's passionate enough to get a strong turn out and he's idealistic enough to inspire a lot of young voters to go to the polls.