The boats you describe are all about the same. The main differenct between the Jefe and the Magnum is chine. The Magnum will do better ferrying accross really pushy water since there is a hard chine that goes from hip to tail. The Jefe is the absolute easiest boat to paddle down manky knar ever (once you playboaters realize that displacement hulls are for boys and girls that fire it up), but does not react quite as well in the pushy stuff. The Jefe surfaces (or never gets the top of the bow wet) so damn well. Both puch holes surprisingly well. The Jefe's lack of chine on the bottom helps it slide off of the mankyest crap with precision and smoothly. An edge in that situation can hold you up on a lip of a drop and deliver you upsidedown, slowly or sideways down a steep drop. The gus has those raised chines so it will track when leaned on its side but usually will not catch those edges. The salto is freaking classic, tracks pretty well, lots of rocker in the very tip of the nose. I liked it when I paddled it. I have seen good boaters at your weight stand up on the tail a whole lot though. Rocker in the stern is a new concept to creek boats. The Jefe has it.
My two cents, check out that Hercules too. I would consider the Stretch and M3 from Pyrhana as well.