Sunset is more popular moment to capture photos. According to our analytics people take pictures of sunset three times more than of sunrises.<p>here is comparison map: http://vertabox.com/projects/sunset-vs-sunrise/compare?date=2013-10-07
Obviously - you have to get up in the night if you want to photograph the dawn, which most people prefer not to do, whereas most people don't go to sleep until well after dark.