For me in terms of sharpness it would be.
Nacet.
Permasharp.
GSB.
Platinum.
As always YMMV.
I am just now completing shaving alternate days with the Perma-Sharp and the Nacette. I can't tell any difference between them.
I'll comment that if we fast forward five years, the DE blade selection landscape will be vastly different than we know it today.