MSilvia:
So, would I be right in drawing from that hypothesis that you believe that jacket-wearers are generally meek and unwilling to express their preference and support one another's arguements, while others tend to be vocal about their preference and form a cohesive front?
Not meek so much as often less experienced, and therefore uncertain about voicing an opinion. When they voice an opinion and get responses that would perhaps be inappropriate if delivered in person, they have a tendency to just back off of the conversation.
And then there are many ... the majority perhaps ... who are unwilling to support arguments simply because they don't think something like that is worth arguing about.
If so, what do you see as being at the root of that? Could it be that there's no zealot like a convert, and that those who've made the switch and like it are enthusiastic about the improvements they see, while those who continue to use the same gear they were shown in their certification class either don't know what they're missing or, having tried it and not liked it, are in a very small minority?
Well, the term "zeal" would certainly apply ... or perhaps just an anxiousness to relate knowledge you've picked up through experience. Often it's less about what you say than how you say it ... and all too often the latter can, and will, put people off to the point where they won't pursue the conversation.
FWIW - I prefer BP/wing to jacket-style ... and would happily explain to anyone why. I would try to do it in a way that would encourage further conversation and questions, rather than berating someone for using a piece of gear that I rejected along the course of my own learning curve. Better yet ... I have multiple sets, so as to give my dive buddies a chance to try one out and decide for themselves if they like it.
On the other hand, I couldn't be bothered with the endless arguments about 1-piece harness vs. 3-piece, or the merits/drawbacks of QR buckles, bent D-rings, light placement, and the like. That all falls in the category of personal preference. Play around with it and figure out what works for you (this is the "attitude" that will prevent me from becoming DIR regardless of how many classes I take).
As for what people prefer to use ... that generally boils down to what they've become comfortable with and what they can afford to purchase. The vast majority of jacket-style users are comfortable with them. Some can even use them very effectively. One of my favorite dive buddies uses the same Seaquest jacket-style BCD he's been diving with for more than a decade. He's got the chops to dive with many of my DIR-trained buddies, and nobody ever rags on his gear, because he's got the skills to make them comfortable diving with him.
On the other hand, I couldn't see that guy coming here to respond to this poll ... it's just not something that's important to him.
So to relate this to the thread ... these polls are really only as good as the people who are willing to respond to them. Often, for many reasons, that's a skewed sampling of our actual readership ...
... Bob (Grateful Diver)