Most of the good black and whites I have seen have crisp edges. But, here is yesterday's fuzzy edged sunset in color and in black and white. I think the B&W holds its own.
http://www.pixentral.com/show.php?pictu ... zWFmAATcMa
http://www.pixentral.com/show.php?pictu ... HjNXbmF8zN
http://www.pixentral.com/show.php?pictu ... zWFmAATcMa
http://www.pixentral.com/show.php?pictu ... HjNXbmF8zN