Agir-Brokk!
I chose an Agir-Brokk Blackbird 36 wing and Agir-Brokk Backplate 28 with Hogarthian harness as my first diving rig after a considerable amount research. The most important factors that influenced my decision were the Blackbird 36's toroidal bladder, the geometry of Agir-Brokk's backplates (they have a relatively flat shape and shallow channel), and Agir-Brokk's use of 316 stainless steel for their backplate material (as opposed to the commonly used 304).
The DIR based design of Agir-Brokk's gear is robust and the quality is excellent. I purchased their gear because I think they make superior products, but I also like the idea of supporting a Swedish company that competes with much larger US based companies. Besides, the Swedes are cool!
Sadamune