Ok, Here is my take on comparing these 3.
The BC 100 and the Line prophet are very similar (if you have had the chance to ski either) A nice generous flex and smooth ski. It is forgiving and predictable but may be a touch soft if the throttle is to the floor.
The Verdict is a different beast. After the change to CNC wood cores the whole BD line changed in skiin characteristics. The Verdict is much stiffer. Handles speed well and you can really open it up on big high speed turns. I find it a little stiff in tight terrain, so there is the trade off.
I skied the Coomba almost all year last year. I really enjoyed it. I found that it is forgiving in technical terrain. Floaty in the pow, and that it can handle some speed. I find it a little more predictable than the Verdict and is easier to scrub speed if needed. The tails are a little softer and the side cut a little less severe in the tail, which helps out with that. In other words I don't always accelerate out of the turn.
I have been finding that in bounds I like to push my gear. Out of bounds I like to push myself...
I hope that might help.