A little late to the convo, but I moved from a jacket BCD to back-inflate a few years ago and I love it. I use it in different types of water conditions (except really cold. I don’t do really cold water.) The back-inflate just feels better and I don’t get that "squeeze" when I inflate it. And I can hang upside down when taking photos or video.
The only way I’d go back to a jacket style is if I was on a dive trip and something happened to my BCD and had to rent or borrow one and a jacket style is all the had available. And if I had to replace it, I’d more than likely go BP&W.