Realtor's are not likely to answer that question. The borkerages we work for warn us that the liability for offering expert opinions or advice for areas we are not actually experts in is huge.
Cheryl has posted a site that tracks national data. A client of mine has blogged about his experience and a program he created http://www.teamten.com/lawrence/projects/sfcrime
and here is a link to the SFPD crime map
SFPD has instituted CompStat, a systemic data driven approach to police response. The tracking of data has improved because of it. Crocker Amazon is in the Taraval District and if you'd like you can subscribe to the Captains e-mail blast.
Please remember that when you look at this data all you see is a list of bad stuff. I advise my clients to take the time to go to the area at different times of the day and night to see for themselves how they feel.
YOu can also form a neighborhood watch group in an area whewre thre have been quality of life crimes.