My advice is to try as many as you can from all types (jacket, Back inflation BC like the zeagle, and BP/W). Then get as many opinions as you can, then buy what you want. You're probably going to change to something else down the road anyway. I currently have 4 BC's. 2 are only for showing what we used to dive (I started diving in 1977, and still have allot of my original gear). And the only reason I keep my Zeagle is when I want to let a buddy try my BP/W.
About the only thing that I would highly recommend is a bc with 2 tank cam bands. I've seen too many tanks slip from the single cam band. And if you go with a steel tank, they are almost a necessity.