I am an experienced diver and recently decided to stay with my Black Diamond BC after looking long and hard at Bp/W. Between the harness with the pad covering the backplate, the weight pockets, and other options (all the bells an whistles) it ended up looking like my bc. Simplicity would remove many of these options and lower the price.
It is really a matter of personal preference. Figure out what works for you and use it. Lots of folks like bp/w because of the streamline, others because with the backplate it takes weight off of the weightbelt. Some like the idea to customize the set up with a wing for doubles and another for travel, and a good set up does offer a variety of options for singles, doubles, etc. Still others like it because it is the whole tech thing and tech is cool for the moment. Funny, I recall when stab jackets first came out, they were cool and wings and horsecollars were for the birds. A word of advice, if you are easily influenced by what the crowd is doing at any one moment, you will be buying a lot of dive gear to replace gear that is perfectly funcitonal.
By the way, the threads are thick with advantages an disadvantages of each. Lots of people have strong opinions (although not as many as seem to have an opinion on force fins).