I'm fairly tall for a woman but have a short body (won't moan about the long legs
) so I need a small mens BC so it doesn't ride up, that then squeezes me when it's inflated. I also (and I realise this is heresy!) loathed the Buddy BCs that our club has for reasons that I can't quite explain!
I like the Diva because it is comfy, it's kind of a wing style so it isn't so bulky around my waist and under my arms yet it still has pockets to tidy things into (I don't have drysuit pockets). You can adjust it so that I can easily switch it between fitting over a drysuit and fitting over a wetsuit or even a rash vest for the pool. I also managed to get a secondhand one on e-bay for less that a cheap new BCD which helped swing the decision!
If I went to a twinset then I'd get a wing -but for now this BC is fine - who knows, if I'd bought another BC I might be singing it's praises now but I'm not planning on changing mine!