I'd say WSD can be all that, depending on how you're built. I figured that I would gravitate towards WSD because I'm 5'4" with a 30" inseam (long legs, short torso). Also, my arms are somewhat short.

But, when I was shopping for a bike a few weeks ago, I rode about 6 WSD and 6 unisex bikes. Many of the WSD bikes were too cramped for me, I felt all scrunched over when I tried getting into the drops. Also, even though I'm short I have fairly broad shoulders (16 inches) and many of the WSD bikes handlebars were way too narrow.

In the end, the bike I fell in love with and purchased was the Orbea Dama Race in size 53cm, which is a women's bike however it is a rather unfeminine WSD bike, if that can be said. Both the salesguy and the professional bike fitter said that, for a WSD bike the Dama Race is rather long on the top tube to allow for a more "european" (their words, not mine) laid out racing stance. Also, the handlebars on it were the exact right size at 40cm. The salesguy's theory on why this bike didn't sell last year was because none of the men were interested in buying a women's bike and none of the women that tried it on liked the "manly" fit. So hey, lucky me!