The first three are all similar with respect to trim moments and weights, and should not be too sensitive to load changes. It appears that some rocker can be tolerated, but anything extreme would have poor stability and load carrying characteristics. No real surprises here, except that a slight amount of rocker seems to help turn performance a lot more than raised ends. As the amount of rocker increases, the cross sectional area increases, but wave drag is reduced. This sounds backwards.
Rocker takes volume out of the ends of the boat, which tends to sharpen the waterlines.
This amount of reduced drag would be very noticeable after a few hours of hard paddling. Like I mentioned earlier, canoe design is more art then science. You can use the general conclusions from this article to help your judgement, but always try the canoe out on the water, configured the way your most likely to use it.