First off: Clinton won't win the Presidency.
Even though she has many supporters, and she's got the backing of Murdoch, she still is hated by too many Americans for whatever reason.
There is no logical explanation for their hatred IMO. But this hatred, coupled with the fact that Clinton hasn't launched any powerful political platform which would bring voters, leaves it to Edwards IMO.
The sooner the Democrats decides on Edwards, the better they'll be off in the Pres election.
Clinton, Obama and Edwards all running in the primaries is basically the only chance the Republicans are gonna win this thing. If the Republicans on the other hand puts forward one candidate real fast, it means that they could pull off a surprise victory.
-Hedge