I don't know about all ladies, but my personal experience supports the theory that they tend to wear bracelets more. There's also the school of thought that bracelets are more practical and easier to match with outfits. Finally, if given the choice between buying a watch on strap versus on bracelet, always get it on bracelet. Why? Because unless it's a watch with an integrated bracelet, it's easy enough to take it off and put on a band, if you desire; it's a lot harder (and more expensive) to attempt to buy the bracelet later.
I absolutely agree with all said, when speaking of what I personally like. Bracelet are not only regarded as jewelry, but they are elegant, and as you said, easy to match with clothing. And if the bracelet is flexible - perfect!