I would just recommend renting/borrowing the same or similar to whatever you are looking to buy, and include in that trying a back inflate (whether BPW or BC). My kids and I love BPW, my wife hates back inflate and sticks to a vest type BCD. See what YOU like before you buy. When you try a back inflate, don't try to lift yourself as far out of the water as you can (that's where the "it tips you face down" claims come from, typically), but instead just get your head out of the water.
Also, there isn't really any unsafe new gear out there.... so it comes down to what you like.
Respectfully,
James