For being streamlined, the bp/w is the best. It has no inherent buoyancy (actually, the buoyancy is 3-6lbs negative, so less weight in the pockets. Instead of having 2 completely independent BCs, just have 2 wings; it will also save money in the long run.
The Atomics are also good regs. If you compare them to the high end scubapro regs, you will notice an incredible amount of similarity. The founders of Atomic Aquatics were ex-scubapro engineers. Around the world, the Scubapro is more common and easier to get serviced. Definitely go to local shop for regs. idk if you live in cold water, but if you do, go with a diaphragm first stage. These are more suited for cold water. For the price of just the B2 1st/2nd stages, you could get a MK17/G250HP regulator or the new (supposed to come out very shortly) MK19/G250V. The difference is a swivel in the first stage and a metal air barrel in the G250V. When you get into doubles, the MK19, MK25 and atomic regs all have some of the best hose routing because of the bottom port. For any water over 50 degrees, go with MK25 with S600/G250HP/G250V
Between the 2 computers, I would go with the VT3 although there doesnt seem to be much difference between the 2
below is a pic of new SP reg from UK site: