A stainless plate is a stainless plate, an aluminum plate is an aluminum plate. If you buy Halcyon, you support the hard working (barely above minimum wage) work force of High Springs, Florida. If you buy a Dive Rite, you support the work force of much larger Lake City Florida. High Springs is about 17 minutes from my house. Lake City is about 35 Minutes from my house.
Buy either one and help MY local economy. As for wings, I've got a few hundred dives on a Dive Rite wing and a few hundred on a Halcyon wing. I've got about a hundred dives on an OMS wing too. I like the inflator hose better on the Halcyon, but for the $200 cost difference, I can buy 5 inflator assemblies and make whatever I want. I have only had a few problems with any wing. The wing in question was the Halcyon, but in all fairness, I was diving in sand restrictions and had a problem with the power inflator button jamming. I fixed it both times. I also had the deflator jam coming out of Cow Springs. That's not a wing problem though, it's a sand issue.
In the end, it really doesn't matter what you buy as long as it will meet your requirements. OMS, Dive Rite, or Halcyon Most of the people who say that you should only dive Halcyon have very little technical experience and are going on what they are told, not what they have actual experience with.
I was a Halcyon dealer a couple of years ago. My wholesale prices were close to Dive Rite's retail prices. I bought in to the whole Halcyon gimmick too. People hype it up and build it into something that is unnecessary. It's only a wing or a plate, it will not make you superman!! I sold a few (mostly to myself), then dropped the dealership. Now, I teach through dealers of OMS and Dive Rite (separate shops).