Yes, I am aware of the design brain trust behind the Rat. Dom Raso used to carry the Rat as well IIRC. He and Daniel Winkler collaborated for the Dynamis Blade. If one doesn't consider Winkler to be a blade guy, then I don't know who would qualify.
I think both examples share the same design parameters. One isn't necessarily "better" IMO.
Tried the Rat. Little small. Tried the Dynamis. Very nice fit for my large hands.