I have dove with both the Halcyon Pioneer 36# and the OxyCheq 45# wings on a single tank setup, both with a STA. They both have some advantages, but I like the OxyCheq a little better. It has expanding gussets next to the tank, which keeps the less durable material shielded a bit. Pioneer has them on the outside, away from the tank. It does not come with integral STA, but I like the SS STA anyway. Keeps the tank very stablemurph-diver:and the single tank wing guys.....?
The Pioneer has a handy handle on the top end of the wing is is nice to use when setting up the gear over the tank. The Pioneer does come with integral STA devices.
You will be happy with either one over any of the other back inflate BC out there no matter which one you choose. The trim is better and much less drag and in my case (moved from a Ranger) it actually dropped 3# of weight I was using due to the "fluffiness" of the Ranger.