I think there's a good chance we could go through Super Tuesday and still not have a presumptive nominee; the Rats give out delegates proportionally in all states, I think, so without winner-take-all the delegate count is much closer.
I do think there is a high probability that the Dems will go through the primaries without a clear winner emerging.
My guess is that Gephardt will take Iowa and many midwestern states, Kerry will probably get New England although Dean may pull some from him, Dean could do well in the West where the far left has a real stronghold in the democratic party. As for the Southern states, I don't see Edwards really gaining traction there so perhaps those states get split up too. The primaries are really front loaded and if they all stay in, then they could easily be split up among the many candidates.
In any event, it's going to be very fun to watch. I'm loving Al Sharpton and Dean is giving Kerry and Edwards grief about their vote for the Iraq resolution. I just love it when they eat their own.
On another note...I think the GOP is pretty united at this point. At least here in Washington State it seems the party is finally realizing that it doesn't do us any good to fight amongst ourselves. We are aggressively recruiting candidates for Senate and Governor and hope to have a SINGLE candidate up and running by July 1 of this year. If we can avoid the nasty primary battles we've had of late, we can win.