The Scorpion Empire's Reptar/Cazador wins my favorite clan design for the sheer utilitarian desperation of it. A shitbox that looks like it got stick welded in a hangar in the middle of nowhere. A solution to a problem of too little armaments in a region with too many threats.

Got a few.

Hussar wins my Favorite Sphere Design, and my favorite design that's been revamped by the fans into so many cool interpretations