I have both and would recommend the nightingale as it is much more flexible and can be worn to work and to play. I love my ps for traveling and weekends.
I vote Nightingale! I feel the PS looks too casual for work, and is the go-to choice of a casual-cool street style of an off-duty-model in NYC. I feel you'll get more longevity out of the nightingale and fits your description of style better.
Thanks, everyone. I think I will definitely get the nightingale. But... I am now contemplating getting the new version which is much cleaner and has an adjustable strap.