I like the platecase. Like the original DOXkb and the samwisekoi GH75 you have pictured. GON has one now as well, I think.
It's a combination of minimal, rigid, and awesome. I think it's a tragedy that aluminum plates aren't bent down at the edges like commercial plates are. Increasing the moment of inertia is really great and would help them a lot. The platecase, ofcourse, does not have this issue.